חָתַן châthan (H2859)
to give (a daughter) away in marriage; hence (generally) to contract affinity by marriage
1) to become a son-in-law, make oneself a daughter's husband 1a) (Qal) wife's father, wife's mother, father-in-law, mother-in- law (participle) 1b) (Hithpael) to make oneself a daughter's husband
a primitive root;