Combination of Kelly and Elijah
Kelijah is a modern American invention, likely created by blending the energetic surname-name Kelly with the popular biblical name Elijah. While it lacks a singular ancient root, it inherits the 'warrior' associations of Kelly and the 'Yahweh is God' meaning of Elijah.
Less common today
Kelijah isn't in the latest US Top 1000. It last peaked at #6,599 in 2018.
US births per 5-year period, 1990βpresent (SSA data).