२२५- अचि र ऋतः।225. aci ra ṛtaḥ.अचि सप्तम्यन्तं, रः प्रथमान्तम्, ऋतः षष्ठ्यन्तं, त्रिपदमिदं सूत्रम्।aci ends in the seventh (saptamī) case, raḥ ends in the first (prathamā) case, ṛtaḥ ends in the sixth (ṣaṣṭhī) case; this sūtra has three words.त्रिचतुरोः स्त्रियां तिसृचतसृ से विभक्तिविपरिणाम करके तिसृचतसृः की अनुवृत्ति आती है।From tricaturoḥ striyāṁ tisṛcatasṛ, altering the case-ending, the anuvṛtti of tisṛcatasṛḥ is carried over.
अच् परे हो तो तिसृ और चतसृ के ऋकार के स्थान पर रेफ आदेश होता है।When ac (a vowel) follows, in place of the ṛkāra of tisṛ and catasṛ the substitute repha occurs.
यह सूत्र ऋतो डिसर्वनामस्थानयोः का बाधक है।This sūtra is the blocker of ṛto ṅisarvanāmasthānayoḥ.
तिसृः, तिसृभिः, तिसृभ्यः।tisṛḥ, tisṛbhiḥ, tisṛbhyaḥ.त्रि से प्रथमा का बहुवचन जस्, अनुबन्धलोप करके त्रि+अस् बना।From tri, the plural of the first case jas, eliding the anubandha, tri+as was formed.त्रिचतुरोः स्त्रियां तिसृचतसृ से त्रि के स्थान पर तिसृ आदेश हुआ।By tricaturoḥ striyāṁ tisṛcatasṛ, in place of tri the substitute tisṛ occurred.तिसृ+अस् बना।tisṛ+as was formed.पूर्वसवर्णदीर्घ प्राप्त हुआ, उसे बाधकर ऋतो डिसर्वनामस्थानयोः से गुण प्राप्त था, उसे बाधकर अचि र ऋतः से तिसृ के ऋकार के स्थान पर र् आदेश हुआ,pūrvasavarṇadīrgha was obtained; blocking that, guṇa was obtained by ṛto ṅisarvanāmasthānayoḥ; blocking that, by aci ra ṛtaḥ, in place of the ṛkāra of tisṛ the substitute r occurred,
तिसृ+र्+अस् बना।tisṛ+r+as was formed.वर्णसम्मेलन होकर तिसृः बना।Joining of letters occurring, tisṛḥ was formed.शस् में केवल पूर्वसवर्णदीर्घ प्राप्त था, उसे बाधकर रेफादेश होकर तिसृः ही बनता है।In śas only pūrvasavarṇadīrgha was obtained; blocking that, the repha substitute occurring, tisṛḥ alone is formed.भिस्, भ्यस् में भी तिसृ आदेश करके सकार का रुत्व और विसर्ग करने पर तिसृभिः और तिसृभ्यः बन जाते हैं।In bhis and bhyas too, having made the tisṛ substitute and effecting rutva and visarga of the sakāra, tisṛbhiḥ and tisṛbhyaḥ are formed.