Here's the root of my question: today we have a worldview and an acceptance of all religions such that someone calling themselves "christian" (or muslim, or hindu, etc) is a quick and sometimes necessary shorthand about who they are. In Medieval Europe, however, I would think christian was such an assumed facet of everyday life that there was barely a word even needed for it when referring to oneself - in much the same way as fish have no need for the word "water."
Working on a novel, the first 1/3 of which takes place in Germany in 1475. My lead female character is "frau du wald", or "woman of the forest", or "witch", and at one point is being quizzed by a young boy who wants to know why her dead mother cannot be buried in the church yard. The boy teases out the thought and finally says, "...and that's because " which is where it breaks down for me.
"She wasn't a Christian."
"She didn't worship Jesus." ...or "the christ" ...or "the nazarene" or something.
What is plausible terminology here?
EDIT for clarity: I know that other religions were known and not uncommon. What I'm asking about is terminology: would Joe Peasant have said "I am a Christian", or something more descriptive like "I am a worshipper (or I worship) the Christ" or perhaps "Hell yeah, I loves me some Jesus!"
(Leaving off the idea that a witch, once discovered, probably wouldn't live long. My plot requires her to be important and alive, so she's important and alive.)
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