deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
This was writen bAlebhyaH बालेभ्यः, "for the kids" (we'd say "for introductory level students", which sounds better). It omits vedic sUtras, anything having to do with accent, and sUtras about uncommonly used words. It is still used in teaching nowadays.