H2992 — yabam
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
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. see H02993
3 occurrences in the KJV.
Genesis 38:8
And Judah said unto Onan, Go in unto thy brother’s wife, and marry her, and raise up seed to thy brother.
Deuteronomy 25:5
If brethren dwell together, and one of them die, and have no child, the wife of the dead shall not marry without unto a stranger: her husband’s brother shall go in unto her, and take her to him to wife, and perform the duty of an husband’s brother unto her.
Deuteronomy 25:7
And if the man like not to take his brother’s wife, then let his brother’s wife go up to the gate unto the elders, and say, My husband’s brother refuseth to raise up unto his brother a name in Israel, he will not perform the duty of my husband’s brother.