deriv SD cv (999) ashtadhyayi.com hei.de L 999 ETT STT a 7.2.117 ALPH OLDHOMEPAGE NEWHOMEPAGE

taddhiteSv acAm AdeH

तद्धितेष्वचामादेः ONPANINI 72117

Before a (/JNit) /taddhita, replace the first vowel (of an /aGga with /vRddhi).

Exception to << acoJNiti and < ata::upadh..., which replace the LAST vowel of the stem.

So —

dazaratha दशरथ + /iJ → dAzaratha दाशरथ + /iJ by this rule → **dAzarathi- दाशरथिॱ

saptati- सप्ततिॱ + /ThaJ, allowed by tenakrItam → **sAptatika- साप्ततिकॱ