- Expatiate is defined as to give extensive details when speaking or writing.
An example of expatiate is someone taking twenty minutes to tell you what they had for lunch.
- Archaic to roam or wander freely
- to speak or write in great detail; elaborate or enlarge (on or upon)
Origin: ; from Classical Latin expatiatus, past participle of expatiari, exspatiari, to go out of one's course, wander ; from ex-, out plush spatiari, to walk, roam ; from spatium, space
- expatiation noun
Used by arrangement with John Wiley & Sons, Inc.
intransitive verb ex·pa·ti·at·ed, ex·pa·ti·at·ing, ex·pa·ti·ates
- To speak or write at length: expatiated on the subject until everyone was bored.
- To wander freely.
Origin: Latin expatiārī, expatiāt- : ex-, ex- + spatiārī, to spread (from spatium, space).
- ex·paˌti·aˈtion noun