Definition of felo-de-se
1 : a person who commits suicide or who dies from the effects of having committed an unlawful malicious act
2 : an act of deliberate self-destruction
First Known Use of felo-de-se
1607, in the meaning defined
History and Etymology for felo-de-se
Medieval Latin felo de se, fello de se, literally, evildoer in respect to oneself