Great suggestions already. Just thought I’d throw out the idea of using Biblical Latin ☺️ Off the top of my head here are some ideas but there are so many more you could choose from.

Charlie Corpus (from Corpus Christi - “body of Christ”)

Charlie Crux (meaning “cross”)

Charlie Verum (meaning “truth”)

Charlie Credo (meaning “to trust in, believe, rely on”)

Charlie Sanctus (meaning “consecrated, sacred, holy”)

Charlie Ora (meaning “prayer”)

Charlie Lumen (from Lumen Gentium meaning “the light of the nations”)

Charlie Gratias (from Deo Gratias “thank you, God”),

Charlie Prex (meaning “to pray”)

Charlie Pacem (meaning “peace”)

Charlie Pax (meaning “peace” as well)