Origin, birth, or creation
Jenasis is a modern phonetic spelling of the word Genesis. It derives from the Greek word meaning 'birth' or 'origin' and is most famously known as the first book of the Hebrew Bible and Christian Old Testament.
Less common today
Jenasis isn't in the latest US Top 1000. It last peaked at #5,774 in 2017.
US births per 5-year period, 1990βpresent (SSA data).