Definition of arbitress in English:

arbitress

noun

archaic
  • A female arbiter.

    • ‘Haywood will not surrender her role as moral arbitress to Amiana.’
    • ‘At last, after wise deliberation of the concerns of either side, she assumes the office of arbitress which is offered to her by both parties.’
    • ‘She was the arbitress in the argument over Adonis between Persephone and Aphrodite.’

Pronunciation

arbitress

/ˈɑːbɪtrəs/