The word "憎恶" is formed by combining two semantic-phonetic characters: "憎" meaning "to hate", which uses the heart radical "忄" for emotion and "曾" for pronunciation, and "恶" meaning "evil" or "to dislike", which uses the heart radical "心" for emotion and "亚" for pronunciation. Together, they create a compound where both characters contribute semantically to express intense hatred or detestation.