πρόσοιδα
From LSJ
Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.
English (LSJ)
pf. without pres. in use (cf. Εἴδω), prop.
A know besides: only in phrase χάριν προσειδέναι be grateful besides, Pl.Ap.20a; χάριν προσείσομαι Ar.V.1420.