Jahsai is a modern American coinage that pairs Jah, the short form of God's name used in the Psalms and in Rastafarian culture, with the -sai ending heard in Jasiah and Josiah, so it is best read as "a name built on Jah", roughly God is my strength in spirit. It is one of several new Jah- names of the 2010s and 2020s. Jahsai was at number 9085 in 2015 and has climbed to number 2547 in 2025, its highest rank so far.