Note 4 — Chapter V · EXTERNAL EVIDENCE
Reading edition
Tacitus very likely wrote Chrestiani. He says the mob called them such, but adds that the author of the name was Christ, so implying that Christianus was the true form, and Chrestianus a popular malformation thereof. The Roman mob would be likely to deform a name they did not understand, just as a jack-tar turns Bellerophon into Billy Ruffian. Chrestos was a common name among oriental slaves, and a Roman mob would naturally assume that Christos, which they could not understand, was a form of it. ↑