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Etymology

sex

/sɛks/

noun

Origin

Latin

sexus — a division, sex, state of being

Overview

Meaning Now

  • Either of the two main categories (male and female) into which humans and most other living things are placed on the basis of their reproductive functions.
  • Sexual intercourse or sexual activity.

Literal older meaning

a division or separation

Language path

Latin → Middle French → English

Earliest form

sexus

Earliest period

14th century

Journey

The word originally stems from the PIE root *sek- meaning 'to cut'. In Latin, 'sexus' implied a classification or division of beings. For centuries, the term was primarily biological or taxonomic, and its common usage to mean sexual intercourse is a relatively modern development, appearing predominantly in the early 20th century.

Evolution

  1. Proto-Indo-European

    *sek-

    “to cut”

  2. Latin

    sexus

    “a division or gender”

    Derived from the past participle of secare (to cut), implying a dividing or separating into classes.

  3. Middle French

    sexe

    “gender, sex”

  4. Middle English

    sex

    “the property of being male or female”

  5. 20th Century

    sex

    “sexual intercourse”

    Semantic narrowing from the biological category to the act itself.

Connections

Word parts

sex-

root

to cut/divide

Related across languages

  • French

    sexe

    sex

  • Spanish

    sexo

    sex

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