n. & v.
n. 1 US a baby's nappy. 2 a a linen or cotton fabric with a small diamond pattern. b this pattern. 3 a similar ornamental design of diamonds etc. for panels, walls, etc.
v.tr. decorate with a diaper pattern.
[ ME f. OF diapre f. med.L diasprum f. med.Gk diaspros (adj.) (as DIA-, aspros white) ]