In Ancient Rome, slaves addressed their masters as Dominus or Domina (male or female, respectively).
Would the slaves (or servants) of Ancient Greece have used a similar title, or would they have simply used their masters's names?
ἀνάξε (pronounced ah-NAHX-eh) is the vocative, if I've handled the accent right.
I vaguely suspect it might be ἄναξε (AH-nax-eh) - my greek is rusty.
Example (Odyssey 24.251):
οὐ μὲν ἀεργίης γε ἄναξ ἕνεκ᾽ οὔ σε κομίζει,
"It is not on account of your idleness your master does not take care of you"