The word "吉祥" is formed by combining two characters: "吉" which itself is composed of "士" (scholar) over "口" (mouth), suggesting auspicious speech or good fortune, and "祥" which combines the radical "示" (related to divinity) with "羊" (sheep, an animal used in sacrifices), denoting divine blessing or auspicious signs. Together, they form a compound word meaning auspicious or lucky.