I really don't mean this to be annoying, but I was always under the impression that it was incorrect to refer to the troops of a Roman Legion as legionnaires. That is unless you were speaking French.
I was taught (and read) that legionnaire refers to the men of the French Foreign Legion, and that the correct term for the Roman Legion's soldier is legionary.
I know the two are used as synonyms quite a bit in colloquial language, but am I correct in the distinction above?
Again, this is not a big deal, but was wondering if the folks in this forum know something I don't.