Rule. After rudh and the roots that follow it, the affix śnam comes. It adds no meaning of its own (svārthe). It comes when a sārvadhātuka affix denoting the agent follows. "Agent" is carried forward from SK 2167. "sārvadhātuka" is carried forward from SK 2756, a rule taught later, in chapter 63.
Bhaṭṭoji first lists the root: rudhir "to obstruct". He adds that nine roots from here are svaritet, so they take both sets of endings. They are also irit, marked with ir.
śnam is an apavāda of śap: it comes instead of śap, so śap never comes. Its ś and m are markers; what is heard is na. Being marked with m (mit), it goes after the root's last vowel by SK 37. So rudh becomes ru-na-dh.
Being nitya, śnam also blocks guṇa. The guṇa of a light penultimate vowel is the later rule. One of Bhaṭṭoji's commentators explains the danger: if guṇa came first, rodh would give a wrong *\roṇaddhi. But śnam applies whether or not guṇa has been made, so it wins. Once it is in, the root's u is no longer the light penultimate, and there is no guṇa.
Example. The singular, with the pit ending ti:
rudh + śap + ti → śnam comes instead of śap and goes after the last vowel u
→ ru-na-dh + ti → t becomes dh (SK 2280), and the root's dh becomes d (jaśtva)
→ ru-na-d-dhi → n becomes ṇ after r
→ ruṇaddhi "he obstructs".
The dual, with tas, which is a kṅit sārvadhātuka:
ru-na-dh + tas → the a of śnam is lost (SK 2469)
→ run-dh + tas → n becomes anusvāra (SK 123), then the nasal of the dh's class (SK 124)
→ rundh + tas → the ending's t becomes dh (SK 2280)
→ rundh + dhas → the root's dh becomes d (jaśtva); final s ends as visarga
→ runddhaḥ. Bhaṭṭoji writes rundhaḥ "the two obstruct", with one stop; see Watch out.
Applies when / blocked by. Two questions arise on rundhaḥ.
First, why does the n not become ṇ after the r, as in ruṇaddhi? The rule for ṇ (ṇatva) is asiddha with respect to SK 123. So anusvāra comes first, and then parasavarṇa (SK 124). The n that parasavarṇa produces is in turn asiddha for ṇatva. So it stays n.
Second, the lost a of śnam is a vowel-substitute. Should it be treated as still present (sthānivat)? Then the n would not stand before a consonant, and SK 123 could not apply. Bhaṭṭoji answers with SK 51. That sūtra says a lost vowel is not sthānivat for anusvāra and parasavarṇa. So both apply.
One of Bhaṭṭoji's commentators adds why śnam has the marker ś. The ś names śnam in two rules: śnasor allopaḥ (SK 2469) and śnān nalopaḥ (SK 2544). It is not there to make śnam sārvadhātuka. An apit sārvadhātuka is ṅit and blocks guṇa of the base before it. But ru before śnam is not a base (aṅga), so that cannot be the purpose either.
Other forms of rudh. The plural is rundhanti. The ātmanepada is rundhe. In luṭ and lṛṭ the affixes tās and sya are ārdhadhātuka, so there is no śnam: roddhā, rotsyati.
In loṭ: ruṇaddhu, rundhāt (with tātaṅ), rundhi (madhyama singular). In the uttama, āṭ makes the ending pit, so the a of śnam stays: ruṇadhāni, and in the ātmanepada ruṇadhai.
In laṅ: aruṇat (ti loses its i, and t is lost after the consonant by SK 252; the root's final dh then becomes t at the end of the word, by cartva). The dual is arundhām. In the madhyama singular the s is lost the same way. Then ru may replace the root's final consonant, giving aruṇaḥ; otherwise aruṇat. SK 2468 allows this ru for a root's final d at the end of a word, when the ending s has been lost. The uttama singular is aruṇadham.
In luṅ the root is irit, so aṅ is optional (SK 2269): arudhat. Without aṅ, sic comes with vṛddhi: arautsīt. In the ātmanepada, sic is lost between two jhal sounds (SK 2281): aruddha.
Watch out. Bhaṭṭoji writes rundhaḥ, rundhe, bhinte, abhinta with one stop before the ending. One of his commentators writes runddhaḥ, bhintte, with two. The two spellings differ only by one stop, and scholars discuss this. This chapter keeps Bhaṭṭoji's forms.
The roots that follow. Bhaṭṭoji then lists the rest of the nine irit roots. Each takes śnam in the same way.
- bhidir "to split":
bhinatti,bhinte,bhettā,bhetsyati/bhetsyate. laṅabhinat,abhintām,abhinadam; ātmanepadaabhinta. luṅabhidat/abhaitsīt; ātmanepadaabhitta, sic lost by SK 2281. - chidir "to make into two": luṅ
acchidat/acchaitsīt; ātmanepadaacchitta. - ricir "to empty":
riṇakti,riṅkte. liṭrireca,ririce; luṭrektā; laṅariṇak. luṅaricat/araikṣīt; ātmanepadaarikta. - vicir "to separate":
vinakti,viṅkte. - kṣudir "to pound":
kṣuṇatti,kṣunte,kṣottā. luṅakṣudat/akṣautsīt; ātmanepadaakṣutta. - yujir "to join": luṭ
yoktā. - ucchṛdir "to shine; to play". Its u is a marker, for an optional iṭ before the affix ktvā. Forms:
chṛṇatti,chṛnte, liṭcaccharda. By SK 2506, iṭ is optional before the s-initial ending se (liṭ ātmanepada, madhyama singular):cacchṛdiṣe/cacchṛtse. luṭcharditā; lṛṭchardiṣyati/chartsyati. luṅacchṛdat/acchardīt; ātmanepadaacchardiṣṭa. - utṛdir "to injure; to disregard":
tṛṇattiand the rest, likechṛṇatti.
Then come roots outside the nine.
- kṛtī "to encircle" is parasmaipadin only:
kṛṇatti. In the ārdhadhātuka forms it is like the tudādi kṛtī (SK 2542):cakarta,kartitā,kartiṣyati/kartsyati,akartīt. - ñi-indhī "to kindle". With it begin three ātmanepadin roots: indh, khid and vid. Their forms follow under SK 2544.
(1438) rudhir — in obstructing (āvaraṇe). Nine [roots, from rudhir on,] are svaritet, and irit as well. [śnam] is an apavāda of śap. Being m-marked (mit), it comes after the last vowel [of the root, by mid aco 'ntyāt paraḥ, SK 37]. Being nitya [since it applies whether or not guṇa has been made], it blocks guṇa [of the light penultimate, which, as the later rule (para), would otherwise come first and give *roṇaddhi; once śnam is in, the penultimate is no longer light]. ruṇaddhi [laṭ, prathama-puruṣa singular: from ru-na-dh + ti, dh for t by jhaṣas tathor dho 'dhaḥ, SK 2280, and ṇ for n]. [In the dual, with ru-na-dh + tas:] śnasor allopaḥ (SK 2469) [deletes the a of śnam, the ending being a kṅit sārvadhātuka]. [With rundh + tas standing, the n would take ṇatva; but] because ṇatva is asiddha, anusvāra [comes first, by naś cāpadāntasya jhali, SK 123, and then] parasavarṇa [by anusvārasya yayi parasavarṇaḥ, SK 124]. Because that [n produced by parasavarṇa] is asiddha, there is no ṇatva. By the sūtra na padānta… (SK 51), the deletion of a is not sthānivat with respect to anusvāra and parasavarṇa. rundhaḥ [prathama-puruṣa dual]. rundhanti [plural]. rundhe [ātmanepada, prathama-puruṣa singular]. roddhā [luṭ]. rotsyati [lṛṭ]. ruṇaddhu [loṭ, prathama-puruṣa singular]. rundhāt [loṭ, with tātaṅ]. rundhi [loṭ, madhyama-puruṣa singular]. ruṇadhāni [loṭ, uttama-puruṣa singular]. ruṇadhai [loṭ, ātmanepada, uttama-puruṣa singular]. aruṇat [laṅ, prathama-puruṣa singular]. arundhām [laṅ, prathama-puruṣa dual]. aruṇat, aruṇaḥ [laṅ, madhyama-puruṣa singular: after the deletion of s, ru is optional by daś ca, SK 2468]. aruṇadham [laṅ, uttama-puruṣa singular]. arudhat, arautsīt [luṅ: aṅ optionally, the root being irit; without aṅ, sic with vṛddhi]. aruddha [luṅ, ātmanepada, prathama-puruṣa singular]. (1439) bhidir — in splitting (vidāraṇe). bhinatti [laṭ]. bhinte [ātmanepada]. bhettā [luṭ]. bhetsyati, bhetsyate [lṛṭ]. abhinat [laṅ, prathama-puruṣa singular]. abhintām [dual]. abhinadam [uttama-puruṣa singular]. abhinta [laṅ, ātmanepada]. abhidat, abhaitsīt [luṅ, parasmaipada: aṅ optionally, the root being irit]. abhitta [luṅ, ātmanepada: sic deleted by jhalo jhali]. (1440) chidir — in making into two (dvaidhīkaraṇe). acchidat, acchaitsīt [luṅ, parasmaipada]. acchitta [luṅ, ātmanepada]. (1441) ricir — in emptying (virecane). riṇakti [laṭ]. riṅkte [ātmanepada]. rireca, ririce [liṭ]. rektā [luṭ]. ariṇak [laṅ]. aricat, araikṣīt [luṅ, parasmaipada]. arikta [luṅ, ātmanepada]. (1442) vicir — in separating (pṛthagbhāve). vinakti. viṅkte. (1443) kṣudir — in pounding (saṃpeṣaṇe). kṣuṇatti. kṣunte. kṣottā [luṭ]. akṣudat, akṣautsīt [luṅ, parasmaipada]. akṣutta [luṅ, ātmanepada]. (1444) yujir — in joining (yoge). yoktā [luṭ]. (1445) ucchṛdir [the u being an it-marker] — in shining and in playing (dīptidevanayoḥ). chṛṇatti. chṛnte. caccharda [liṭ]. By se 'sici… (SK 2506), iṭ is optional: cacchṛdiṣe, cacchṛtse [liṭ, ātmanepada, madhyama-puruṣa singular]. charditā [luṭ]. chardiṣyati, chartsyati [lṛṭ]. acchṛdat, acchardīt [luṅ, parasmaipada]. acchardiṣṭa [luṅ, ātmanepada]. (1446) utṛdir — in injuring and in disregarding (hiṃsānādarayoḥ). tṛṇatti and the rest, like chṛṇatti. (1447) kṛtī — in encircling (veṣṭane). It is parasmaipadin. kṛṇatti. In the ārdhadhātuka [forms it is] like the tudādi [kṛtī]. (1448) ñi-indhī — in kindling (dīptau). Three [roots, from this one,] are ātmanepadin.
- commentary BM: 'the affix śnam comes after rudh etc. when a sārvadhātuka in the sense of the agent follows, in its own sense (svārthe)'; hence Bhaṭṭoji's 'śapo 'pavādaḥ'. Followed: the bracketed conditions in sutra_en.
- translator BM supplies the sense without naming the source rules; that 'kartari' and 'sārvadhātuke' are carried forward from kartari śap (SK 2167) and sārvadhātuke yak (SK 2756) is the translator's identification.
- commentary BM on 'nityatvād guṇaṃ bādhate': objection — laghūpadha-guṇa, being para, would be made before śnam, and then śnam would give *roṇaddhi. Answer: śnam applies whether guṇa has been made or not, so it is nitya; once it is in, the penultimate is not light and there is no guṇa. Followed: the bracketed reasoning in k1.
- commentary BM on the derivation: ruṇaddhi — with ru-na-dh + ti, dh by jhaṣas tathoḥ and ṇatva. For ru-na-dh + tas, śnasor allopaḥ, because it applies before a kṅit sārvadhātuka. With rundh + tas standing, ṇatva is anticipated, hence 'ṇatvasyāsiddhatvāt'. Objection: let the n take ṇatva once parasavarṇa is made — hence 'tasyāsiddhatvāt', i.e. of the n produced by parasavarṇa (parasavarṇasaṃpannasya). Objection: since the a-deletion is sthānivat by acaḥ parasmin pūrvavidhau, how can anusvāra and parasavarṇa apply? — hence 'na padānta…'. Followed: the bracketed steps and 'that [n produced by parasavarṇa]' in k1.
- commentary TB (sk.2543.t1): though śnam is an affix, being mit it comes after the last vowel; the point of its being an affix is that ś is an it; the ś is pronounced to specify śnam in śnasor allopaḥ and śnān nalopaḥ, not to give the sārvadhātuka designation, which would have no effect. Nor is guṇa-prohibition (an apit sārvadhātuka being ṅit) the effect, because the ik-final [part before śnam] is not an aṅga. Recorded.
- commentary TB (sk.2543.t1): aruṇaḥ — in sip, ru optionally by daś ca; likewise abhinaḥ. Followed: the bracket on aruṇat, aruṇaḥ.
- commentary BM: aruṇat — in laṅ, tip deleted by halṅyādi, with optional cartva of dh; in sip, likewise deleted, and considering the option of ru by daś ca, aruṇat / aruṇaḥ; abhinat / abhinaḥ — ru optionally by daś ca. Followed: the bracket on aruṇat, aruṇaḥ.
- commentary BM: arudhat, arautsīt — the option of aṅ is because the root is irit; without aṅ, sic with the vṛddhi of a hal-final root; aruddha — sic deleted by jhalo jhali; abhidat, abhaitsīt likewise; abhitta — sic deleted by jhalo jhali. Followed for the brackets on these luṅ forms.
- commentary TB (sk.2543.t1) on ucchṛdir: the u is for optional iṭ before ktvā (chṛtvā, charditvā; in the iṭ option there is guṇa, na ktvā seṭ having removed kit-ness). BM: 'the u is an it', for optional iṭ in ktvā by udito vā. Followed: '[the u being an it-marker]'.
- commentary BM's pratīkas read 'runddha iti' and 'runddhe iti' (dh by jhaṣas tathoḥ), and its paradigms give bhintte, abhintta, where the kaumudī (ours and the print) has rundhaḥ, rundhe, bhinte, abhinta. Recorded; the English keeps the kaumudī's forms.
- textual The digital source reads 'dvaidhikaraṇe' (chidir); NSP p. 413 (scan page-0423) prints 'dvaidhīkaraṇe', and Wikisource agrees (collation batch03). The English follows the print. The dhātu numbers in our markup run one lower than the print (print 1439 rudhir … 1449 ñi indhī); they are given as transmitted. Otherwise the kaumudī matches the print, including rundhaḥ, rundhe and arundhām.
- textual TB on this sūtra ('rudhādibhyaḥ śnam … na ktvā seṭ iti kittvaniṣedhād guṇaḥ'), printed after the TB on tudādi, was filed in ours at the tail of sk.2541.t1; it was re-filed here as sk.2543.t1 on 2026-10-05.
- translator The lakāra, pada and puruṣa labels are the translator's. rundhaḥ, rundhe, rundhi, arundhām, bhinte, abhintām, abhinta, kṣunte and chṛnte show a single d or t where the full forms (runddhaḥ, bhintte etc.) have two; the loss is presumably by the optional jharo jhari savarṇe (SK 71), which BM invokes under SK 2544 (śiṇḍhi / śiṇḍḍhi). The kaumudī does not say so. 'Like the tudādi [kṛtī]' refers to kṛtī chedane in SK 2542 (cakarta, kartitā, kartiṣyati / kartsyati, akartīt).