Simplex
From LSJ
ἐν δὲ τοῖς φυσικοῖς ἀεὶ οὕτως, ἂν μή τι ἐμποδίσῃ → in natural products the sequence is invariable, if there is no impediment | now with that which is natural it is always thus if there is no impediment
Latin > French (Gaffiot 2016)
(2) Simplex,¹⁴ ĭcis, m., surnom : Tac. H. 2, 60.
