διαείδω

A. διᾴσασθαι Phryn. PS p.65B.:—contend in singing, τινί with one, Theoc. 5.22: abs., contend in song, sing for the prize, Arist. Po. 1462a7, Phryn.l.c.

II. to be dissonant, opp. συνᾴδω, Heraclit. 10.