T / tristĭtūdo
noun

tristĭtūdo

gen. tristĭtūdĭnis · gender feminine · decl. 3rd
sadness; sorrow; grief
sadness, sorrow, grief, melancholy, dejection (post-class.): omnem de tuo pectore tristitudinem mitte, App. M. 3, p. 134; so id. Mag. p. 295, 19; Sid. Ep. 8, 11 fin.