Possession or spear; alternatively, a modern variant of Cain.
Cainen is primarily a modern creative spelling of the biblical name Cain or the Irish surname Keenan. In a biblical context, it stems from the Hebrew word for 'possession' or 'acquired.' As a variant of Keenan, it relates to the Gaelic word for 'ancient' or 'distant.'
Less common today
Cainen isn't in the latest US Top 1000. It last peaked at #2,556 in 2017.
US births per 5-year period, 1990βpresent (SSA data).