A person who engages in sexual relations outside of marriage; someone guilty of fornication.
From fornicate + -or (agent noun). This term became formalized in English law, theology, and literature to specifically identify people who violated sexual codes. Medieval and early modern legal documents are full of references to fornicators.
Being called a 'fornicator' in medieval times could get you publicly shamed, fined, or even imprisoned—which makes it clear that this word carried serious social and legal weight, not just moral judgment.
Latin 'fornix' (vault, arch) became Medieval English term for brothel. 'Fornicator' historically applied asymmetrically to men and women, with women labeled 'fornicatrix' or 'fornicatrices'—gendered linguistic marking of sexual conduct.
Use 'fornicator' gender-neutrally if needed, or prefer neutral terms like 'person engaging in fornication' to avoid historical patterns of gendered condemnation.
["person engaging in fornication","sexually promiscuous individual"]
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