insomnietas
From LSJ
ὥσπερ σελήνη γ' ἡλίῳ· τὴν μὲν χρόαν ἰδεῖν ὁμοιόν ἔστι θάλπει δ' οὐδαμῶς → like the moon to the sun: its color is similar to the eye, but it does not give off any heat
Latin > English (Lewis & Short)
insomnĭĕtas: ātis, f. id., for insomnia,
I sleeplessness (late Lat.), Theod. Prisc. 2, 1; Plin. Val. 1, 35.
Latin > French (Gaffiot 2016)
īnsomnĭĕtās, ātis, f., insomnie : Th. Prisc. 2, 1.