1530s, "moderator, umpire," from stickle "mediate" (1520s), probably a frequentative of Middle English stihen "to arrange, place," from Old English stihan "to arrange order," which is cognate with Middle Dutch stichten, German stiften "to found, establish," probably from Proto-Germanic *stihtan "to place on a step or base," from PIE root *steigh- "to stride, step, rise" (see stair). Meaning "person who contends or insists stubbornly" is first recorded 1640s.