dioptra
From LSJ
τά γε μὰν λίνα πάντα λελοίπει ἐκ Μοιρᾶν → but all the thread granted him by the Fates had run out
Latin > English (Lewis & Short)
dĭoptra: ae, f., = δίοπτρα,
I an optical instrument to measure the height of places, Vitr. 8, 6; for measuring the sun's shadow, Plin. 2, 69, 69, § 176.
Latin > French (Gaffiot 2016)
dĭoptra, æ, f. (δίοπτρα), instrument d’optique servant à prendre les hauteurs ou les distances : Vitr. Arch. 8, 5
