וַיֵּ֤דַע קַ֙יִן֙ אֶת־אִשְׁתּ֔וֹ וַתַּ֖הַר וַתֵּ֣לֶד אֶת־חֲנ֑וֹךְ וַֽיְהִי֙ בֹּ֣נֶה עִ֔יר וַיִּקְרָא֙ שֵׁ֣ם הָעִ֔יר כְּשֵׁ֖ם בְּנ֥וֹ חֲנֽוֹךְ׃
Targum Jonathan on Genesis
And Kain knew his wife, and she conceived and bare Hanok; and he builded a city, and called the name of the city after the name of his son, Hanok.