deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE

@rules that change roots before yak

Copying from Coulson

Roots before /yak, by kGitica, get no /guNa and no /vRddhi.

R -enders replace with ri रि by !! or with ar अर् by !! — **kriyate क्रियते

(i u )-enders lengthen by !! — **cIyate चीयते, **zrUyate श्रूयते

RR -enders make Ir ईर् — **saGkIrNa- सङ्कीर्णॱ

but Ur ऊर् after /pu — **ApUryamANa- आपूर्यमाणॱ