συμβάλλειν
From LSJ
Δρυὸς πεσούσης πᾶς ἀνὴρ ξυλεύεται → Quercu cadente, nemo ignatu abstinet → Fiel erst die Eiche, holt ein jeder Mann sich Holz
Greek > English (Woodhouse Verbs Reversed)
(see also συμβάλλω): attack, conjecture, close with, deduce, engage, explain, guess, infer, match, meet, bring into conflict, clash together, close of another, come to blows, do business with, encounter in battle, join battle, make known, make to clash, meet in battle, of combatants, set side by side, shut the eyes, transact business with