I. ˈstī(-ə)l noun
Etymology: Middle English, from Old English stigel; akin to Old English stǣger stair — more at stair
Date: before 12th century
: a step or set of steps for passing over a fence or wall ; also : turnstile
II. noun
Etymology: probably from Dutch stijl post
Date: 1678
: one of the vertical members in a frame or panel into which the secondary members are fitted