Sinu

Etymology
From Proto-Indo-European *suHnús (son).

It has 3 meanings:
 * Male offspring.
 * Younger male in relation to the speaker.
 * Lower ranked man in a all-male religious community in relation to the higher ranked man.

Derived words

 * alsinu (n), son-in-law.
 * dewsinu (n), godson.
 * kisinu (n), step-son.
 * -sinu (suffix), suffix for male Keltsvian patronymic surnames.
 * upsinu (n), grandson.