Origin and Etymology of fornicate
Late Latin fornicatus, past participle of fornicare to have intercourse with prostitutes, from Latin fornic-, fornix arch, vault, brothel
First Known Use: 1552
FORNICATE Defined for English Language Learners
Definition of fornicate for English Language Learners
: to have sexual intercourse
Seen and Heard
What made you want to look up fornicate? Please tell us where you read or heard it (including the quote, if possible).