knick, knicks, nick, nick's, nicked, nicks, nik, nikk's, nix, nyx

dickey, dickie, dicky, hickey, ikey, ikie, knicker, micki, mickie, micky, neary, nicky's, nicley, nike, nilly, nippy, nitty, nixie, picchi, picky, rickey, ricki, rickie, ricky, rikki, vickey, vicki, vickie, vicky, wickey, nickey, nicki, nikki