mid-15c., "wicked, criminal" (implied in feloniously), from felony + -ous. Replaced felonous (mid-14c.) by c. 1600. Felonly (c. 1300) was another variation.
权威例句
1. He carried out a felonious act.
他犯了一个重罪.
2. It is a misdemeanor to show movies that depict acts of felonious crime.