This is an intriguing thread, which makes me want to bring up two issues.
1) My personal pet peeve is regarding those that say “I COULD care less”.
I have always said “I COULDN’T care less” inasmuch as it, to me, is more logical.
If you could care less, then it has at least some modicum of importance to you.
If you couldn’t care less, then it is of the absolute least possible importance to you.
Yet, for some reason, both are used interchangeably, and accepted as meaning the same thing.
2) Being neither a student nor scholar in either languages in general or specifically in Latin, I would ask whether the fact that the various Latin words in question are used in a sentence written in English would have any bearing on the issue.
Would the Latin words that have entered the English language be subject to the rules of Latin Grammar or the rules of English grammar, or would a combination of correct Latin grammar and common English usage be the ultimate determinant of acceptable use?
Would this be considered to be within the guidelines for the accepted evolution of a language?