The Collaborative International Dictionary
findy
findy \fin"dy\ (f[i^]n"d[y^]),
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[AS. finding heavy; cf. Dan. fyndig strong, energetical, fynd strength, energy, emphasis.] Full; heavy; firm; solid; substantial. [Obs.]
A cold May and a windy Makes the barn fat and findy.
--Old Prover
Wiktionary
findy
a. (context obsolete English) full; heavy; firm; solid; substantial