Though it moves a bit away from your original concept some, Roman virtues that show up in Christianity as well that might make good sword names.
Pietas: Piety; duty to God, family, and people.
Providentia: Providence, forethought; surviving trials to manifest a greater destiny
Laetita; joy, celebration usually after hardship
Gravitas; gravity, sense of responsibility
Firmitas; Tenacity, strength of mind
Clementia; mercy, gentleness
It seems "cchius" means sword in this context (I am not very good with latin, damn correspondence course....) so add it to the end of one of these for sword names, Gravitacchuis or something like that.