from
The Collaborative International Dictionary of English v.0.48
Toggle \Tog"gle\, n. [Cf. {Tug}.] [Written also {toggel}.]
1. (Naut.) A wooden pin tapering toward both ends with a
groove around its middle, fixed transversely in the eye of
a rope to be secured to any other loop or bight or ring; a
kind of button or frog capable of being readily engaged
and disengaged for temporary purposes.
[1913 Webster]
2. (Mach.) Two rods or plates connected by a toggle joint.
[1913 Webster]
3. A toggle switch.
[PJC]