frankincense — an aromatic gum resin from various Asian and African trees of the genus Boswellia, especially B. carteri, used chiefly for burning as incense in religious or ceremonial practices, in perfumery, and in pharmaceutical and fumigating preparations.
Four-or-more syllable rhymes
casually — happening by chance; fortuitous: a casual meeting.
casualty — A casualty is a person who is injured or killed in a war or in an accident.