Watchful or vigilant
Caci is a modern phonetic variant of the name Casey. It is derived from the Irish surname Γ Cathasaigh, which translates to descendant of Cathasach, a personal name meaning watchful or vigilant.
Less common today
Caci isn't in the latest US Top 1000. It last peaked at #5,638 in 1991.
A character in the video game series Β· The Legend of Zelda: Breath of the Wild
US births per 5-year period, 1990βpresent (SSA data).