Etymograph

English

eudiometer

Eudiometer comes from Ancient Greek εὔδιος ‘clear (weather)’.

  1. Ancient Greekc. 800–300 BCEεὔδιοςeúdios‘clear (weather)’
  2. Englishearliest quotation 1780eudiometer

attested reconstructed ? uncertain or disputed

Lineage

  1. Ancient Greekc. 800–300 BCEεὔδιοςeúdios‘clear (weather)’
  2. Englishearliest quotation 1780eudiometer

Earliest quotation: 1780, Philip Thicknesse: “The same ingenious gentleman has also invented some Eudiometers,…”

Formed from -meter

Today it means

noun A graduated glass tube, closed at one end, that is used for measuring the change in the volume of gases during a chemical reaction.

Language periods are conventional ranges, not dates for this word.

Etymograph / Ancient Greek εὔδιος / eudiometer