θρεπτήρ
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)
ῆρος, ὁ,
A feeder, rearer, of a parent or foster-parent, IG3.1401, JRS2.91 (Antioch in Pisidia), AP12.137 (Mel.): pl., IG14.1722: as Adj., θ. ἀγοστός Nonn. D.3.387.