γραΐδιον
From LSJ
ἐγώ εἰμι τὸ φῶς τοῦ κόσμου· ὁ ἀκολουθῶν μοι οὐ μὴ περιπατήσῃ ἐν τῇ σκοτίᾳ ἀλλ' ἕξει τὸ φῶς τῆς ζωῆς → I am the light of the world; he that followeth me shall not walk in darkness but shall have the light of life (John 8:12)
English (LSJ)
τό, Dim. of γραΐς,
A old hag, Ar.Pl.536:—elsewh. contr. γρᾴδιον, ib.674, Philyll.5, X.An.6.3.22, D.18.260, Men.Georg.54, etc.: barbarous form γρᾴδιο Ar.Th.1194.