ἀποφθεγκτήριον
From LSJ
Ποιητὴς, ὁπόταν ἐν τῷ τρίποδι τῆς Μούσης καθίζηται, τότε οὐκ ἔμφρων ἐστίν → Whenever a poet is seated on the Muses' tripod, he is not in his senses
English (LSJ)
τό, A an utterance, Man.4.550.
Greek (Liddell-Scott)
ἀποφθεγκτήριον: τὸ, ἔκφρασις, ἐκφώνησις, Μανέθ. 4. 550.