phantasma
ἐν πιθήκοις ὄντα δεῖ εἶναι πίθηκον → in Rome we do as the Romans do | when in Rome, do as the Romans do | when in Rome, do as the Romans | when in Rome, do like the Romans do | when in Rome | being among monkeys one has to be a monkey
Latin > English (Lewis & Short)
phantasma: ătis, n., = φάντασμα.
I An apparition, spectre, phantom (postAug.; cf.: idolon, imago, simulacrum): velim scire, esse phantasmata et habere figuram ... an inania, etc., Plin. Ep. 7, 27, 1: si phantasma fuit Christus, Tert. adv. Marc. 5, 7; Vulg. Matt. 14, 26; id. Marc. 6, 49.—
II In gen., an image, appearance, phantasm of an object (late Lat. for visum, imago, species): Alexandriam cum eloqui volo, quam nunquam vidi, praesto est apud me phantasma ejus, Aug. Trinit. 8, 6.
Latin > French (Gaffiot 2016)
phantasma,¹⁶ ătis, n. (φάντασμα), être imaginaire, fantôme, spectre : Plin. Min. Ep. 7, 27, 1 || idée, représentation par l’imagination : Aug. Trin. 8, 6.