Premise: As for stalemate , which is related to checkmate , would it not have been important to indicate that the - mate part has nothing to do with English, having been borrowed from checkmate which is a loanword from Persian (and has nothing to do with check , either).

Hypothesis: Stalemate is related to checkmate, and the mate part of the word is actually derived from a loanword from Persian.
Relation: entailment