stalemate: [18] Stalemate is a compound noun, based on the now obsolete stale ‘stalemate’. And this in turn was probably borrowed from Anglo- Norman estale ‘fixed position’, a derivative of Old French estaler ‘halt’, which also underlies English stale and stall. So etymologically, when you reach stalemate in chess, you have to ‘stand’ or ‘halt’ where you are, going neither forward nor back.
