Syrinx
From LSJ
Ψεύδει γὰρ ἡ ‘πίνοια τὴν γνώμην → A second thought proves one’s first thought false
Latin > English (Lewis & Short)
Sȳrinx: ingis (also Sȳringa, ae, Serv. Verg. E. 2, 31; 10, 26), f., = Σύριγξ.
I A nymph changed into a reed, Ov. M. 1, 691 sq.—
II sȳringes, um, f., caverns or subterraneous passages, Amm. 22, 15, 30; 17, 7, 11 al.
Latin > French (Gaffiot 2016)
(2) Sȳrinx, ingis, f., nymphe d’Arcadie, changée en roseau : Ov. M. 1, 691.