Liddell-Scott-Jones

στρόφιγξ (strophigx) a hinge ^G:N-M

στρόφιγξ-ιγξ, ιγγος, ὁ

(ἡ, [Refs]: (στρέφω):— pivot, axle or pin on which a body turns, [Refs 5th c.BC+]

__2 plural, pivots working in sockets, at top and bottom of a door, [Refs 4th c.BC+]
__3 metaphorically, γλώττης σ., of a well-hung tongue, [Refs 5th c.BC+]; of the vertebrae, [Refs 5th c.BC+]
__4 νύμφη ἡ ἐν τῷ σ., uncertain meaning in [Refs]