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Etymology

average

/ˈæv.ər.ɪdʒ/

noun

Origin

Arabic

ʿawār — a defect or damage to goods

Overview

Meaning Now

  • A number expressing the central or typical value in a set of data, typically the arithmetic mean.
  • A standard or level regarded as typical or ordinary.

Literal older meaning

damage sustained by a ship or its cargo

Language path

Arabic → Medieval Latin → Old French → English

Earliest form

avaragium

Earliest period

15th century

Journey

The term originated in maritime commerce. If a ship encountered a storm and cargo had to be thrown overboard ('jettison') to save the vessel, the cost of the lost cargo was distributed proportionately among all merchants whose goods were on the ship; this distribution was called an 'average'.

Evolution

  1. Arabic

    ʿawār

    “blemish, flaw, or damage”

    Source of the concept of proportional loss.

  2. Medieval Latin

    avaria

    “maritime loss or damage”

    Used in commercial shipping contexts.

  3. Old French

    averie

    “customs duty or contribution to compensate for lost cargo”

    Refers to the division of losses among stakeholders.

  4. English (17th century)

    average

    “the arithmetic mean”

    Extended from distributing proportional loss to calculating any numerical average.

Connections

Related across languages

  • French

    avarie

    damage (to a ship)

  • Italian

    avaria

    damage or breakdown

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