Boyd’s Bible Dictionary:

(assembly). Second son of Levi, and head of the house of Kohathite Levites (Gen. 46:11; Ex. 6:16,18; Num. 3:27; 26:57; Josh. 21:4-42).

Concise Bible Dictionary:

Son of Levi, and his descendants. He was the grandfather of Moses and Aaron. Of Kohath little is revealed: he went into Egypt with the rest of his brethren and died at the age of 133 years. The Kohathites carried the “most holy things” of the tabernacle-the ark, table of show bread, golden altar, and so forth, but were not permitted to touch or even look upon them. In the first census the male descendants of Kohath, between thirty and fifty years of age, were 2750. Their descendants embraced several important families, including that of the priesthood. See LEVITES. (Ex. 6:16,18; Num. 3:17-30; Num. 4:2-37; Num. 26:57-58; Josh. 21:4-26; 1 Chron. 6:1-70, and more).

Strong’s Dictionary of Hebrew Words:

from an unused root meaning to ally oneself; allied; Kehath, an Israelite
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

waiting: obedient: assembly

Potts’ Bible Proper Names:

An assembly; allied; obedience:―second son of Levi, Gen. 46:11. {Congregatio}