Cross
Kroix is a modern phonetic spelling of the French word 'croix', meaning cross. It serves as a contemporary, edgy alternative to the traditional name Cruz or the surname-style name Cross.
Less common today
Kroix isn't in the latest US Top 1000. It last peaked at #7,458 in 2020.
US births per 5-year period, 1990βpresent (SSA data).