deriv SD cv (161) ashtadhyayi.com hei.de L 161 ETT STT a 7.1.9 ALPH OLDHOMEPAGE NEWHOMEPAGE

ato bhisa:: ais

अतो भिस‌ ऐस् ONPANINI 71009

After a अ, replace /bhis with /ais.

azva- + /bhis
→ azva + /ais by this rule
→ azvais by vRddhireci
→ !**azvais "by horses"

**deva- + /bhis → !**devais "by gods"

**vRkSa- + /bhis → !**vRkSais "with trees"

**ta- + /bhis → !**tais "by them"

Why do we say "after a "?

/bhis stays after everything else —

**azvA- + /bhis → !**azvAbhis f "with mares"

**vadhU- + /bhis → !**vadhUbhis f "with wives"

**nadI- + /bhis → !**nadIbhis f "with rivers"

**tA- + /bhis → !**tAbhis f "with them"

vidyut- + /bhis → **vidyudbhis

rAjan- + /bhis → **rAjabhis by nalopaHprAt...

Wait, in **rAjabhis we have a before /bhis. Why doesn't this rule apply?

Because nalopaHprAt... is /asiddha to this rule. After we get into the /tripAdI we cannot go back out.

Wait, shouldn't that "/asiddha" word mean that former this rule is stronger than later nalopaHprAt...? I'm confused now.

No. Actually, /asiddha means that nalopaHprAt... does its work, but that change does not trigger this rule. Roughly speaking, rules before 82001 pUrvatrAsiddh... are "deep" rules and work first. Then rules after 84021 are "shallow", and work on the output of the "deep" — but the changes made by the shallow do not trigger the deep again.