καθάρυλλος
From LSJ
αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
English (LSJ)
ον, Com. Dim. of καθαρός,
A dainty, ἄρτοι Pl.Com.86. Adv. -λλως Cratin.27.
German (Pape)
[Seite 1282] dim. zu καθαρός, säuberlich, Plat. com. bei Ath. III, 110 d; auch adv., Cratin. ib. IX, 396 b.