LSJ
ἡ, female attendant, keeper, PTeb. 378.4 (iii AD); guardian, PThead. 18.2 (iii/iv AD).
mother-in-law, Gloss.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ἡ, fem. zu κηδεστής, Schwiegermutter, Schwiegertochter, Sp.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)