οὐκ ἐν τῷ πολλῷ τὸ εὖ, ἀλλ' ἐν τῷ εὖ τὸ πολύ → good is not found in plenty but plenty in good, quality matters more than quantity
addĭtĭo: ōnis, f. id.,
I an adding to, addition: figurarum additio et abjectio, Quint. 9, 3, 18: Sic corpori fit additio, Cael. Aur. Acut. 2, 37; Prisc. p. 978 P.
addĭtĭō, ōnis, f., action d’ajouter : Varro L. 5, 6.