ῥητροφύλαξ
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)
[ῠ], ᾰκος, ὁ, keeper of archives, Phot., Suid., EM703.46.
Greek (Liddell-Scott)
ῥητροφύλαξ: [ῠ], -ακος, ὁ, ὁ φύλαξ τῶν ἀρχείων, ἀρχειοφύλαξ, Φώτ., κλ.