spectativus
From LSJ
Ὑπὸ γὰρ λόγων ὁ νοῦς μετεωρίζεται ἐπαίρεταί τ' ἄνθρωπος → Borne up by words, the mind soars aloft, and we reach the heights (Aristophanes, Birds 1447f.)
Latin > English (Lewis & Short)
spectātīvus: a, um, adj. id.,
I contemplative, speculative: thesin a causā sic distinguunt, ut illa sit spectativae partis, haec activae, Quint. 3, 5, 11: opp. actualis, Isid. 2, 24, 9.
Latin > French (Gaffiot 2016)
spectātīvus, a, um (specto), spéculatif : Quint. 3, 5, 11.