Where does “cuaraenta” come from?
cuaraenta (Old Spanish) comes from Latin quadraginta, from Proto-Indo-European kʷetwr̥̄ḱomt, from Proto-Indo-European kʷétwr̥dḱomt, from Proto-Indo-European kʷetwr̥-, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.
Ancestry of “cuaraenta”, step by step
Words derived from “cuaraenta”