cantankerous: [18] Cantankerous is a rather mysterious word. It first appears in the 1770s, and the earliest known reference to it is in Oliver Goldsmith’s She Stoops to Conquer 1772: ‘There’s not a more bitter cantanckerous road in all christendom’. Its origin is disputed: perhaps the likeliest source is Middle English contekour ‘brawler’, from contek ‘strife’, a borrowing from an unrecorded Anglo-Norman *contek, but an Irish origin has also been suggested, perhaps from Irish cannrán ‘strife, grumbling’ (another early user of the word was the Irish playwright Thomas Sheridan).
