betroth in Finnish

(archaic) Often of a parent or guardian: to promise that (two people) be married to each other; specifically and chiefly, to promise that (a woman) be given in marriage to a man; to affiance.

(Christianity, archaic) Of God: to enter into a relationship with (believers, or the church as a whole); also, of a priest: to pledge (himself) to the church prior to being consecrated as a bishop.