πληρωτέον
From LSJ
Οὗτος Ἰουστῖνον καὶ Νεοβιγάστην στρατηγοὺς προβαλόμενος, καὶ τὰς Βρεττανίας ἐάσας, περαιοῦται ἅμα τῶν αὐτοῦ ἐπὶ Βονωνίαν → He appointed Justinus and Neovigastes as generals, and leaving Britain, crossed with his forces to Bononia.(Olympiodorus/Photius)
English (LSJ)
A one must fill, Gp.6.2.4.
Greek (Liddell-Scott)
πληρωτέον: ῥημ. ἐπίθ., πρέπει τις νὰ γεμίσῃ, Γεωπ. 6. 2, 4.