bailiwick

noun

Etymology: From bailie (“bailiff”) and wick (“dwelling”), from Old English wīc.

1. The district within which a bailie or bailiff has jurisdiction.

   “The Bailiwick of Jersey.”

2. A person's concern or sphere of operations, their area of skill or authority.

   “I established the fairly well-understood pattern that affairs of state were not in my bailiwick.”

   “Jack is full of these insights, thoughtful turns of phrase from a character whose perpetual struggle between wastrel and righteous is all too familiar a bailiwick for the universal insecurities of the human condition.”