χαρτοφύλαξ

ακος, ὁ
A. = χαρτουλάριος, Lyd. Mag. 3.19, Choerob. in Theod. 1.287H., Suid. s.v. Γεώργιος.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project