felo-de-se

noun

ˌfe-lō-də-ˈsā 

-ˈsē

plural felones-de-se fə-ˌlō-(ˌ)nēz-də-ˈsā 

-ˈsē

or felos-de-se ˌfe-lōz-də-ˈsā 

-ˈsē

1

: a person who ends their own life or who dies from the effects of having committed an unlawful malicious act

2

: the act of ending one's own life : suicide

Word History

Etymology

Medieval Latin felo de se, fello de se, literally, evildoer in respect to oneself

First Known Use

1567, in the meaning defined at sense 1