arbitrario
From LSJ
ἔκστασίς τίς ἐστιν ἐν τῇ γενέσει τὸ παρὰ φύσιν τοῦ κατὰ φύσιν → what is contrary to nature is any developmental aberration from what is in accord with nature (Aristotle, On the Heavens 286a19)
Latin > English (Lewis & Short)
arbī̆trārĭō: adv., v. arbitrarius.
Latin > French (Gaffiot 2016)
arbitrārĭō, d’une façon douteuse : Pl. Pœn. 787.
