IPA: /dɪˈzɜːr/
KK: /dɪˈzɜr/
A person, typically a man, who performs monologues or spoken pieces, often in a skilled or professional manner.
The diseur captivated the audience with his powerful storytelling.
Diseur comes from Old French 'dire' (meaning to say) and the suffix '-eur' (meaning one who). Thus, a 'diseur' is one who speaks or says something, often referring to a storyteller or speaker.
Think of someone who 'says' ('dire') something — that's why a 'diseur' is a person who speaks.