ouch
1. ouch \'au.ch\ n [ME, alter. (resulting fr. incorrect division of a nouche) of noucheX, fr. MF, of Gmc origin; akin to OHG nusca clasp; akin to OE net obs 1: CLASP, BROOCH 2a: a setting for a precious stone 2b: JEWEL, ORNAMENT; esp : a buckle or brooch set with precious stones 2. ouch ij [origin unknown] : - used to express sudden pain or displeasure