from The Century Dictionary and Cyclopedia
- n. a tackle applied from above half-mast down when the mast requires support, as the belly-guy is applied from below. See belly-guy.
- n. A plate on a locomotive which goes under the belly of the boiler, acting as a support for the latter and binding the frame-plates together. When the locomotive has inside cylinders the belly-stay also carries the cross-head guides.
Sorry, no etymologies found.