Where does “pigneraturus” come from?

pigneraturus (Latin) comes from Latin pignero, from Latin pignus, from Proto-Indo-European peh₂ǵ- — to attach.

Definitions

Step	Language	Word	Meaning
1	Latin	pignero	I pledge, pawn, mortgage; I guarantee, assure
2	Latin	pignus	pledge, mortgage; hostage; wager, stake
3	Proto-Indo-European	peh₂ǵ-	to attach

pigneraturus — Etymology, Origin & Word History | Etymology Explorer