deriv SD cv (349) ashtadhyayi.com hei.de L 349 ETT STT a 7.2.86 ALPH OLDHOMEPAGE NEWHOMEPAGE

yuSmad;asmador an-Adeze

युष्मदस्मदोरनादेशे ONPANINI 72086

Replace /yuSmad- /asmad- (with A आ before a consonant /sup) that is not a replacement.

/yuSmad- + /bhyAm
→ yuva युव + /bhyAm by yuvAvaudviv... 6>
→ yuvA युवा + /bhyAm by this rule
→ **yuvAbhyAm युवाभ्याम्

/yuSmad- + /bhis
→ yuSma युष्म + A आ + /bhis by this rule
→ yuSmA युष्मा + /bhis by akassavarN...
→ !**yuSmAbhiH युष्माभिः

!**yuSmAsu युष्मासु, same steps

!**asmAbhiH अस्माभिः

**asmAsu अस्मासु

Why do we say "a consonant /sup"?

Before a vowel /sup, there is no lenghtening —

/yuSmad- + /TA → tva त्व + /TA → **tvayA त्वया
/asmad- + /Gas → **mama मम
/yuSmad- + /Gi → tva त्व + /Gi → **tvayi त्वयि
/asmad- + /Gi → **mayi मयि

Why do we say "that is not a replacement" ?

Rule bhyasobhyam, replaces /bhis with abhyam अभ्यम्. So, no lengthening —

**yuSmabhyam युष्मभ्यम्

**asmabhyam अस्मभ्यम्

The substitute case-endings of /yuSmad- and /asmad- are:

a अ from yuSmadasmadbhy...

**mama मम

/am from Geprathamay...

**vayam वयम्

n न् from zasona

**asmAn अस्मान्, **yuSmAn युष्मान्

abhyam अभ्यम् from bhyasobhyam

**asmabhyam अस्मभ्यम्, **yuSmabhyam युष्मभ्यम्

Akam आकम् from sAma::Akam

**asmAkam अस्माकम्, **yuSmAkam युष्माकम्

and at अत् from paJcamyA::at

**mat मत्

But **mAm माम्, **tvAm त्वाम्, **asmAn अस्मान् and **yuSmAn युष्मान् are lengthened anyway.

Sure they do, but by prathamayoHp... or by amipUrvaH, not by this sUtra.