From Wiktionary, the free dictionary
Borrowed from German Steigbügel. Equivalent to stiga (“step, rise”) + bygel (“ring, hoop”).
stigbygel c
- (equestrianism) a stirrup
- (anatomy) stapes, stirrup (in the middle ear)
hammaren, städet och stigbygeln- the hammer, [the] anvil, and [the] stirrup