F / frātrŭēlis
noun

frātrŭēlis

gen. frātrŭēlis · gender masculine · decl. 3rd
frater, analog. with patruelis
a father's brother's son; a cousin
a father's brother's son, a cousin (late Lat.), Hier. Ep. 22, 26; cf.: fratrueles filii materterae sunt, Isid. Orig. 9, 6, 15.