ἀναπληρωτέον
From LSJ
ὡς μήτε τὰ γενόμενα ἐξ ἀνθρώπων τῷ χρόνῳ ἐξίτηλα γένηται → in order that so the memory of the past may not be blotted out from among men by time
English (LSJ)
A one must fill up, supply, Plu.Cim.2, Gp.9.11.3.
Greek (Liddell-Scott)
ἀναπληρωτέον: ῥηματ. ἐπιθ., πρέπει τις ν’ ἀναπληρώσῃ, Πλουτ. Κίμ. 2.