anode (English)

Where does "anode" come from?

The English noun 'anode' was coined in 1834 by English polymath William Whewell for Michael Faraday[1]. Whewell formed the word using the Ancient Greek elements 'ἀνα-' meaning 'up' and 'ὁδός' meaning 'path'[1]. The Greek root 'ὁδός' developed from Proto-Hellenic '*hodós', which is traditionally traced back to the Proto-Indo-European root '*sed-' meaning 'to sit'[2].

Open questions

• The derivation of the Proto-Hellenic form from the Proto-Indo-European root meaning to sit has been disputed. [2]

Full etymology tree

• anode (English), 'An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows inwards (and thus, electrons flow outwards). It can have either a positive or a negative voltage with respect to cathode of the same polarized device (depending on whether the device is a load or a source, respectively).'
  • prefix ἀνα- (ana-) (Ancient Greek), 'up to, upwards, up'
  • derived ὁδός (hodós) (Ancient Greek), 'road; path; way'
    • inherited *hodós (Proto-Hellenic)
      • inherited *sodós (Proto-Indo-European)
        • derived *sed- (Proto-Indo-European), 'to sit'

Ancestors

• *sed- (Proto-Indo-European)
• ἀνα- (Ancient Greek)

Descendants and derived words

• anion (English)
• anodal (English)
• anode slime (English)
• anodic (English)
• anodization (English)
• anodize (English)
• anodophile (English)
• anodophilic (English)
• anolyte (English)
• bioanode (English)
• galvanic anode (English)
• multianode (English)

Sources

1. anode (English) - Wiktionary
2. ὁδός (hodós) (Ancient Greek) - Wiktionary

Updated October 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris