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semi-diametros

Ὃν οἱ θεοὶ φιλοῦσιν ἀποθνήσκει νέος → He whom the gods love dies young
Menander, fr. 125

Latin > French (Gaffiot 2016)

sēmi-dĭămetrŏs, ī, f., demi-diamètre, rayon : Ps. Boet. Geom. 424, 3.