Origin: < Welsh Cymry Welshmen, pl. of Cymro < British Celtic *combrogos, presumably “fellow countryman,” equiv. to *com- (c. L com-com-) + *-brogos, deriv. of *brogā > Welsh, Cornish, Breton bro country, district; cf. Allobrogēs a Gaulish tribe, OIr mruig piece of inhabited or cultivated land