improprie
From LSJ
Ἡμερὶ πανθέλκτειρα, μεθυτρόφε, μῆτερ ὀπώρας ... → All-soothing vine, nurse of the wine, vintage's mother ... (Anthologia Palatina 7.24.1)
Latin > English (Lewis & Short)
imprō̆prĭē: (inpr-), adv., v. improprius.
Latin > French (Gaffiot 2016)
imprŏprĭē, improprement : Plin. 10, 29 ; Gell. 17, 1 ; 6, 6, 2.