F / fulmenta
noun

fulmenta

gen. fulmentae · gender feminine · decl. 1st
contr. from fulcimenta, from fulcio (ante-class.)
a prop; support
a prop, support of a building, Cato, R. R. 14, 1.—
the heel
In partic., the heel of a shoe, Lucil. ap. Non. 206, 26; Plaut. Trin. 3, 2, 94.