deriv SD cv (33) ashtadhyayi.com hei.de L 33 ETT STT a 1.1.2 ALPH OLDHOMEPAGE NEWHOMEPAGE

ad;eG guNaH अदेङ्गुणः ONPANINI 11002

a अ e ए o ओ are called /guNa.

Or in other words —

When a sUtra says /guNa, that may mean a अ e ए o ओ.

The word **guNa- गुणॱ means "(good) quality" in ordinary Sanskrit, but as a grammar term it usually means "a अ e ए o ओ".

Example. When rule atoguNe literally says "delete a अ before /guNa", it means —

"delete a अ before a अ e ए o ओ".

Because of sthAnentarat..., when we replace a vowel with /guNa, if that vowel has a raised tongue it turns into e ए —

i इ I ई e ए → e ए

The ones that close the lips turn into au औ —

u उ U ऊ o ओ → o ओ

And the others into a अ —

R ऋ RR ॠ → a अ by this rule → ar अर् by uraNraparaH
L ऌ → a अ by this rule → al अल् by uraNraparaH

You did not mention a अ A आ ai ऐ au औ. When a rule replaces A आ ai ऐ au औ with /guNa, what do we replace them with?

I think that no rule replaces those with /guNa. If I am wrong, apply sthAnentarat....

Why did you just slip in the weasel word "may" above?

The "guNa गुण" word in sUtra votoguNav... actually means "quality", ISO this sUtra.