taetricitas
From LSJ
Ὅστις γὰρ ἐν πολλοῖσιν ὡς ἐγὼ κακοῖς ζῇ, πῶς ὅδ' Οὐχὶ κατθανὼν κέρδος φέρει; → For one who lives amidst such evils as I do, how could it not be best to die?
Latin > English (Lewis & Short)
taetrĭcĭtas: (tētr-), ātis, f. taetricus,
I a grave or serious expression; gravity, seriousness: habitus oris taetricitate decorus, Auct. Pan. ad Pis. 90.
Latin > French (Gaffiot 2016)
tætrĭcĭtās (tetr-), ātis, f. (tætricus), air sombre, sévère : Ps. Sal. Bass. Laus Pisonis 103.