Where does “spéis” come from?

spéis (Middle Irish) comes from Middle English peis, from Latin pēnsum, from Latin pendō, from Proto-Italic pendō, from Proto-Indo-European (s)péndeti, from Proto-Indo-European (s)pend- — to stretch.

Ancestry of “spéis”, step by step

StepLanguageWordMeaning
1Middle Englishpeis—
2Latinpēnsumallotment, portion, weight (of wool measured out to a slave to spin in a day)
3Latinpendōto weigh, weigh out
4Proto-Italicpendōhang, put in a hanging position
5Proto-Indo-European(s)péndeti—
6Proto-Indo-European(s)pend-to stretch

Words derived from “spéis”

Every word from Proto-Indo-European (s)pend- →Every word from Proto-Indo-European (s)péndeti →Every word from Proto-Italic pendō →
spéis — Etymology, Origin & Word History | Etymology Explorer