Where does “sar” come from?

sar (Old Portuguese) comes from Latin sānō, from Latin -ō, from Proto-Indo-European -ō — Derives nouns from roots.

Ancestry of “sar”, step by step

StepLanguageWordMeaning
1Latinsānōto heal, cure
2Latin-ōsuffixed to nouns or adjectives. Originally a-stem nouns. Later extended to nouns with other stems. Forms regular first-conjugation verbs
3Proto-Indo-European-ōDerives nouns from roots

Words derived from “sar”

Every word from Proto-Indo-European -ō →Every word from Latin -ō →Every word from Latin sānō →