christianus

Christianus, christiana, christianum, first and second declension, and used as a noun at least as often as an adjective: christianus is "a Christian", christiani "Christians". The forms in this corpus are overwhelmingly the masculine plural, because the word is nearly always naming a group of people rather than describing a thing.

Two things to watch. It is four syllables, Chri-sti-a-nus, where English has flattened it to two, and the Ch- is a transliterated Greek chi, so it belongs with the small set of Greek loans that keep their h. Capitalisation is an editorial decision made by modern printers; manuscripts run it lower case alongside everything else, which is why the lemma is stored that way here.