Where does “elocution” come from?

Elocution derives from Latin elocutio, meaning the act of speaking out or expression.

elocution (English): The art of public speaking with expert control of...

Definitions

Step	Language	Word	Meaning
1	Latin	elocutio	utterance, expression; oratorical delivery,...
2	Latin	ēloquor	—
3	Latin	loquor	I say, speak, tell, talk; I declare, utter
4	Proto-Italic	tlokʷōr	—
5	Proto-Indo-European	telkʷ-	to talk

elocution — Etymology, Origin & Word History | Etymology Explorer