Where does “poiser” come from?

poiser (Old French) comes from Latin pēnsāre, from Latin pendēre, from Latin pendō, from Proto-Italic pendō, from Proto-Indo-European (s)péndeti, from Proto-Indo-European (s)pend- — to stretch.

Ancestry of “poiser”, step by step

Step	Language	Word	Meaning
1	Latin	pēnsāre	—
2	Latin	pendēre	—
3	Latin	pendō	to weigh, weigh out
4	Proto-Italic	pendō	hang, put in a hanging position
5	Proto-Indo-European	(s)péndeti	—
6	Proto-Indo-European	(s)pend-	to stretch

Words derived from “poiser”

poiser
contrepoiser

Every word from Proto-Indo-European (s)pend- →Every word from Proto-Indo-European (s)péndeti →Every word from Proto-Italic pendō →