F / fusterna
noun

fusterna

gen. fusternae · gender feminine · decl. 1st
contr. from fusterina, sc. pars, from fustis
the upper part; knotty part of a fir - tree
the upper part, knotty part of a fir - tree, Plin. 16, 39, 76, § 196; Vitr. 2, 9.