συνθεσίη

From LSJ

διήλθομεν διὰ πυρὸς καὶ ὕδατος → we went through fire and water, we have gone through fire and water

Source

French (Bailly abrégé)

ης (ἡ) :
ion. c. συνθεσία.

English (Autenrieth)

(ίθημι): only pl., treaty, Il. 2.339; instructions, Il. 5.319.