πολυμερῶς

Ὁ μὲν βίος βραχύς, ἡ δὲ τέχνη μακρή, ὁ δὲ καιρὸς ὀξύς, ἡ δὲ πεῖρα σφαλερή, ἡ δὲ κρίσις χαλεπή → Life is short, art long, opportunity fleeting, experience misleading and judgment difficult

French (Bailly abrégé)

adv.
en plusieurs parties, de plusieurs sortes, diversement.
Étymologie: πολυμερής.

adverb from a compound of πολύς and μέρος; in many portions, i.e. variously as to time and agency (piecemeal): at sundry times.