παιδότριψ
From LSJ
ἐπ' αὐτὸν ἥκεις τὸν βατῆρα τῆς θύρας → you've come to the crux of the matter, come to the point, hit the nail on the head, you've come to the very threshold of the door, you are come to the very threshold of the door, you've arrived at the truth of the matter
English (LSJ)
ῐβος, ὁ, A = παιδοτρίβης, Luc. Tim.14; but f.l. for πεδότριψ in Ph.2.446.
German (Pape)
[Seite 441] ιβος, = παιδοτρίβης, Luc. Tim. 14, wie schon Suid. las, u. Arcad. 94, 19 steht; nach Andern richtiger πεδότριψ.
Greek (Liddell-Scott)
παιδότριψ: ἡμαρτημ. γραφὴ ἀντὶ πεδότριψ.
Greek Monolingual
παιδότριψ, -ιβος, ὁ (Α)
ο παιδοτρίβης.
[ΕΤΥΜΟΛ. < παῖς, παιδός + -τριψ (< τρίβω), πρβλ. αγωνό-τριψ].