noun, feminine/sœʁ/plural: sœurs
sister; nun
“Quel âge a ta sœur ?” — How old is your sister?
Synonyms: nonne, religieuse
Inherited from Middle French soeur, from Old French suer (nominative), from Latin soror (cf. also the Old French oblique form seror from the Latin accusative sorōrem), from Proto-Italic *swezōr, ultimately from Proto-Indo-European *swésōr.