observator
From LSJ
Δύο γὰρ, ἐπιστήμη τε καὶ δόξα, ὧν τὸ μὲν ἐπίστασθαι ποιέει, τὸ δὲ ἀγνοεῖν → Two different things are science and belief: the one brings knowledge, the other ignorance
Latin > English (Lewis & Short)
observātor: ōris, m. id.,
I a watcher, observer (perh. not ante-Aug.): nemo observator, nemo castigator assistet, Plin. Pan. 40: observator et custos bonorum, Sen. Ep. 41, 2: Catholicae legis, i. e. one who obeys it, Cod. Th. 16, 5, 1.
Latin > French (Gaffiot 2016)
observātŏr,¹⁵ ōris, m. (observo), observateur, celui qui remarque : Sen. Ep. 41, 2 ; Plin. Min. Pan. 40 || celui qui observe, qui pratique [un culte : Cod. Th. 16, 5, 1.