Where does “petīre” come from?

petīre (Latin) comes from Latin petere, from Latin peto, from Proto-Indo-European péth₂eti, from Proto-Indo-European peth₂- — to spread out; to fly.

Ancestry of “petīre”, step by step

Step	Language	Word	Meaning
1	Latin	petere	present active infinitive of petō; second-person...
2	Latin	peto	I ask, beg, request; I make for; I seek, aim at,...
3	Proto-Indo-European	péth₂eti	to fly
4	Proto-Indo-European	peth₂-	to spread out; to fly