luctuose
From LSJ
Τὸ μανθάνειν δ' ἥδιστον εὖ λέγοντος, εἰ κέρδος λέγοι → It is the sweetest thing to learn from one speaking well, if they speak profitably
Latin > English (Lewis & Short)
luctŭōsē: adv., v. luctuosus.
Latin > French (Gaffiot 2016)
lūctŭōsē (luctuosus), d’une façon pitoyable : Varro L. 5, 76 || -sius Liv. 28, 39, 6, d’une manière plus déplorable.
Latin > German (Georges)
lūctuōsē, Adv. (luctuosus), kläglich, jammervoll, canere (v. der Nachtigall), Varro LL. 5, 76: illud autem quam luct. ridiculum est, Augustin. de opere monach. 32. § 42: his casibus proeliorum ita luct. finitis, Amm. 31, 8, 1: imperatores vestri luctuosius nobis quoque quam vobis perierunt, Liv. 28, 39, 6.