xenru - son-in-law - yerno

[is]

xenru: pronounced SHEN-roo. The husband of one’s daughter.
Usage examples:
El xenru de Nolo trabaya n’Arcelor hai cuantaya. [Nolo’s son-in-law has worked at the steel mills of Arcelor for ages]
Esi xenru tuyu nun val una perrona. [That son-in-law of yours is a good-for-nothing]
Xuacu ia xenru mieu purque casouse cona mia fia. [Xuacu is my son-in-law because he married my daughter]

Folk wisdom:
Con una fia nun pues tener dos xenros [You can’t have two sons-in-law if you only have one daughter]
Amista de xenru, sol pel iviernu. [Friendship with a son-in-law can brighten your winter]

French: gendre, Portuguese: filho na lei, German: Schwiegersohn, Russian: sin po zakonu [literally: son by law], Persian: damad

[Bob]

Yerno in castellano. Xenru and yerno appear to come from the same root. The movement of the "r" flap occurs in other situations (probe, pobre, for example).