On the Stigmata

What is the stigmata? It essentially means 'mark.' This is a question that is important to me in establishing a line of argument for the dating of the artificial development of the connotation of the Palestinian Aramaic word “marqa”, which originally meant the sealing and legal delivery of a legal document, and specifically when speakers of this language might first have been able, on the analogy of Latin, to invent an artificial scholarly use of it as meaning “stigmata”. The word is Germanic in origin. The question is, when does it first appear in Latin or Romance? Does it first appear as a literary word, or as a colloquial word, or is it impossible to work out the details? We can’t work this out from the dictionaries, and we don’t. know the literature. In short, we haven’t got the necessary Sprachgefühl. Any information would be appreciated.