micropsychus
From LSJ
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)
micropsȳchus: a, um, adj., = μικρόψυχος,
I little-minded, narrow-minded (postAug.), Plin. 22, 24, 51, § 110: Novius, Mart. 1, 87 lemm.
Latin > French (Gaffiot 2016)
micropsȳchus (-chŏs), a, um, (μικρόψυχος), pusillanime : Plin. 22, 110.