From Wiktionary, the free dictionary
kfꜣ ( “ to be(come) discreet ” ) + jb ( “ heart, mind ” ) .
compound
to be(come) trustworthy
Alternative hieroglyphic writings of kfꜣ-jb
m
confidant , trusted person
See under the verb above.
Erman, Adolf , Grapow, Hermann (1931 ) Wörterbuch der ägyptischen Sprache [1] , volume 5, Berlin: Akademie-Verlag, →ISBN , pages 120.10–120.11
Faulkner, Raymond Oliver (1962 ) A Concise Dictionary of Middle Egyptian , Oxford: Griffith Institute, →ISBN , page 285
Allen, James Peter (2015 ) Middle Egyptian Literature: Eight Literary Works of the Middle Kingdom , Cambridge: Cambridge University Press, →ISBN , pages 187–188