תּוּבַל קַיִןTûwbal Qayin

proper name, masculine: first worker in metal (Genesis 4:22)

Pronunciation: too-bal' kah'-yin · Hebrew/Aramaic (Old Testament) · H8423

Same root

יָבַלyâbal · H2986properly, to flow; causatively, to bring (especially with pomp)
יְבוּלyᵉbûwl · H2981produce, i.e. a crop or (figuratively) wealth
קַיִןQayin · H7014Kajin, the name of the first child, also of a place in Palestine, and of an Oriental tribe

Where it appears

Appears 4 times in the Bible.

Genesis 4:22 Lamech’s other wife, Zillah, gave birth to a son named Tubal-cain. He became an expert in forging tools of bronze and iron. Tubal-cain had a sister named Naamah.

See every passage

Genesis 4:22

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).