one who has gone over to heretics, a renegade Buddhist:
Mvy 8759 °takaḥ; Bhīk 16b.2 °tikā. The corresp. Pali,
Vin. i.89.35, has titthiya-pakkantaka, apparently =
prakrānta(ka); but I suspect that the true original of
both this and avakr° was *apakrāntaka; Pali apakkamati
and apakkanta are used in mgs. very close to this, and
neither ava-nor pra-kram- seems so appropriate.