пуркаҥаш (-ам)
{verb I} [Generate paradigm] 1. to become loose, to become friable, to become crumbly
♢ мланде пуркаҥын {sentence} the earth became loose
2. to become stale, to dry out (bread)
♢ кинде пуркаҥын {sentence} the bread became stale
~ ASPECTUAL CONVERB CONSTRUCTIONS ~
// пуркаҥ(ын) пыташ (-ем) {verb II} {perfective} (see above)
♢ сыр пуркаҥын пытен {sentence} the cheese became stale
--"PARENT"--> пурка [1]