roach
1. roach \'ro-ch\ n or roach also roach.es [ME roche, fr. MF] pl 1: a silver-white European freshwater cyprinid fish (Rutilus rutilus) with a greenish back; also : any of various related fishes (as some shiners) 2: any of several American freshwater sunfishes (family Centrarchidae) 2. roach vt [origin unknown] 1: to cause to arch; specif : to brush (the hair) in a roach - o ften used with up 2: to cut (as a horse's mane) so the part left stands upright 3. roach n 1: a curved cut in the edge of a sail to prevent chafing or secure a better fit 2: a roll of hair brushed straight back from the forehead or side of the he ad 4. roach n : COCKROACH
Webster's English Dictionary