ὀπισθοκράνιον
From LSJ
ῥεῖα δ' ἀρίζηλον μινύθει καὶ ἄδηλον ἀέξει, ῥεῖα δέ τ' ἰθύνει σκολιὸν καὶ ἀγήνορα κάρφει → easily he humbles the proud and raises the obscure, and easily he straightens the crooked and blasts the proud (Hesiod, Works and Days 6-8)
English (LSJ)
[ᾱ], τό, A the back part of the skull, occiput, Sever. ap. Aët.7.92, Paul.Aeg.6.2, Gloss.
German (Pape)
[Seite 358] τό, der hintere Theil des Hirnschädels, VLL.
Greek (Liddell-Scott)
ὀπισθοκράνιον: τό, τὸ ὄπισθεν μέρος τοῦ κρανίου, τὸ ἰνίον. Γλωσσ.· οὕτως, ὀπισθόκρᾱνον, Νικηφ. Βλεμμ. Ἐκλογ. σ. 667, ἔκδ. Mai.