French

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Etymology 1

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From Ancient Greek μέτρον (métron, measure, rule).

Prefix

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métro-

  1. related to measure or measurement

Etymology 2

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From Latin mātrīx, ultimately from Proto-Indo-European *méh₂tēr (mother).

Prefix

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métro-

  1. metro-, related to mother or uterus
  2. (by extension) related to metropolis or city

Derived terms

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