Lewis & Short

Christĭcŏla, ae, m. [Christus-colo], a worshipper of Christ, a poet. designation for Christian, Prud. Cath. 3, 56; 8, 80; gen. plur. Christicolūm, id. contr. Symm. 2, 1002; id. στεφ. 3, 72.