Boyd’s Bible Dictionary:

(strong). (1) Father of Noah (Gen. 5:28-32). (2) Father of Jubal, inventor of the harp and organ (Gen. 4:18-26).

Concise Bible Dictionary:

1. Descendant of Cain. He was the first to take two wives (sign of corruption); his sons were noted for making musical instruments, and working in brass and iron (Gen. 4:18-24). Lamech acknowledged his vengeance (sign of violence), for some injury he had received, but intimated his belief that God would watch over him as He had over the life of Cain. His address to his wives is poetical. See POETRY.
2. Son of Methuselah and father of Noah (Gen. 5:25-31; 1 Chron. 1:3; Luke 3:36).

Jackson’s Dictionary of Scripture Proper Names:

why thus with thee?: unto bringing low