ἀναχάσκω
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)
only pres. and impf., Ar.Av.502, Fr.68, Luc.VH2.1; poet.
A ἄγχασκε Pherecr.196:—other tenses from pres. Αναχαίνω, fut. -χᾰνοῦμαι Hp.Superf.29: aor. 2 ἀνέχᾰνον: pf. ἀνακέχηνα:—open the mouth, gape wide, ἀναχανὼν μέγα Ar.Eq.641; στόμα ἀνακεχηνός Hp.Nat.Mul.45.