Strong's #2992: yabam (pronounced yaw-bam')

a primitive root of doubtful meaning; used only as a denominative from 2993; to marry a (deceased) brother's widow:--perform the duty of a husband's brother, marry.

Brown-Driver-Briggs Hebrew Lexicon:

yâbam

1) (Piel) to perform levirate marriage, perform the duty of a brother-in-law

1a) the duty due to a brother who died childless - to marry his widow and have a son for his name

Part of Speech: verb

Relation: a primitive root of doubtful meaning

Usage:

This word is used 3 times:

 

Genesis 38:8: "unto thy brother's wife, and marry her, and raise up seed to thy brother."
Deuteronomy 25:5: "shall go in unto her, and take her to him to wife, and perform the duty of a husband's brother"
Deuteronomy 25:7: "in Israel, he will not perform the duty of my husband's brother."