ἀποκρουστέον
From LSJ
νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
English (LSJ)
A one must repel, Them.Or.22.278a.
Greek (Liddell-Scott)
ἀποκρουστέον: ῥηματ. ἐπίθ., πρέπει τις νὰ ἀποκρούσῃ, Θεμίστ. 278A.
Spanish (DGE)
hay que rechazar αὐτήν Them.Or.22.278a.