E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Curmudgeon (3 syl.).
A grasping, miserly churl. Dr. Johnson gives the derivation of this word thus, cur mechant, unknown correspondent. Dr. Ash, in his dictionary, says, cur, unknown; mechant, correspondent, a blunder only paralleled by the schoolboy translation of the Greek, me genoito, by (God) εoo (forbid) (Luke xx. 6).