[1649 A. Ascham Bounds Publique Obed. 58 At this distance he [sc. Jas. I] contrived how to extinguish or check that mate [sc. the Kirk] there.]
(emphasis mine; cannot access OED; unlike other given examples enclosed in square brackets)
I find this example peculiar. In what sense does 'checkmate' occur as a verb here? And what is actually going on in this sentence? Is the word mate as occurring here cognate with -mate in 'checkmate'?
Can anyone shed some light on this? (I cannot even decipher the source.)