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Etymology

molly

/ˈmɒli/

noun

Origin

English

Mary — Diminutive of Mary

Overview

Meaning Now

  • A diminutive form of the female given name Mary.
  • A species of small, live-bearing freshwater fish in the genus Poecilia.
  • Slang term for the pure crystalline powder form of MDMA (3,4-methylenedioxymethamphetamine).

Language path

Proto-Indo-European → Hebrew → Latin → Old French → Middle English → English

Earliest form

Molly

Earliest period

16th century

Journey

The name Molly originated as a nickname for Mary, following a phonetic pattern common in English diminutives where the rhotic 'r' was replaced by a lateral 'l' (similar to Sall from Sarah or Hal from Harry). By the 18th century, 'molly' was also used as a colloquialism for a person, often pejoratively for men considered effeminate.

Evolution

  1. Late Latin

    Maria

    “From Hebrew Miryam”

  2. Middle English

    Molle

    “A nickname for Mary”

    Common shift from 'r' to 'l' in English hypocoristics

  3. 17th century

    Molly

    “Common name for a woman of lower status”

    Often used in literary works as a generic name

  4. 20th century

    Molly

    “Small aquarium fish (Poecilia)”

    Shortened from the generic name Mollienesia

  5. 21st century

    Molly

    “MDMA”

    Derived from the word 'molecular'

Connections

Word parts

Moll

root

hypocoristic of Mary

-y

suffix

diminutive

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