berch, berk, berke, birk, bourke, burck, burk, burke, cirque, derk, dirk, ferch, geck, germ, germe, gick, gieck, gjerde, herk, jac, jack, jake, jech, jerde, jerked, jerks, jock, joke, juke, jurs, kirch, kirk, kurk, lerch, lurk, merc, merck, merk, murch, murk, perc, perk, purk, sherk, shirk, sirk, turck, turk, werk, werke, work, yerke, zirk, gerke, jerk