Définitions
1.NounOne who uses obsequious compliments to gain self-serving favour or advantage from another; a servile flatterer.
2.NounOne who seeks to gain through the powerful and influential.
3.NounAn informer; a talebearer.
4.VerbTo inform against; hence, to calumniate.
5.VerbTo play the sycophant toward; to flatter obsequiously.