This paper examines the causative use of English agentive verbs such as walk, jump and march, which are prototyp- ically intransitive and unergative. The author argues that their transitive causative use is the result of a process of lexical caus- ativization. The cause external argument in such lexical causatives must be construed as an immediate cause of the causative event and can only be an agent in the true sense, but never an instrument or a natural force. These particular lexical causatives start their syntactic derivation with a transitive verb rather than an unaccusative verb. The tra...