Shaky

·superl Full of shakes or cracks; cracked; as, shaky timber.

II. Shaky ·superl Shaking or trembling; as, a shaky spot in a marsh; a shaky hand.

III. Shaky ·superl Easily shaken; tottering; unsound; as, a shaky constitution; shaky business credit.

shaky
A term applied by lumbermen, dealers in timber, and carpenters, to boards which are inclined to spli...

Dictionary of American Words And Phrases by John Russell Bartlett.