Word: buckstay
Part of speech: Noun
Syllables: buck
stay
Definition: A vertical support for a furnace or boiler, to give it rigidity.
Morphemes:
Affix: buck
Language: en
PoS: Verb
Meaning: To press a reinforcing device (bucking bar) against (the force of a rivet) in order to absorb vibration and increase expansion. See Wikipedia: Rivet:Installation.
Affix: stay
Language: en
PoS: Noun
Meaning: A prop; a support.