Concept:Check each word for correct spelling. The word "Afiliate" is misspelled; the correct spelling is "affiliate".Explanation:- Option A: "Inimical" is correctly spelled. It means harmful or hostile.- Option B: "Etiquette" is correctly spelled. It refers to polite behavior rules.- Option C: "Afiliate" is incorrect. The correct spelling is "affiliate", meaning to officially connect.- Option D: "Adjourn" is correctly spelled. It means to suspend a meeting.Thus, the only incorrectly spelled word is "Afiliate".Answer:C. Afiliate