Where does “pigratus” come from?

pigratus (Latin) comes from Latin pigro, from Latin piger, from Latin pigeō, from Proto-Indo-European peyǵ- — inactive, reluctant.

Definitions

Step	Language	Word	Meaning
1	Latin	pigro	I am indolent, slow, dilatory; I hesitate; dative...
2	Latin	piger	backward, slow, dull, lazy, indolent, sluggish,...
3	Latin	pigeō	—
4	Proto-Indo-European	peyǵ-	inactive, reluctant

pigratus — Etymology, Origin & Word History | Etymology Explorer