sneeze (English)

Where does "sneeze" come from?

The English verb 'sneeze' descends from Middle English 'snesen', which was an alteration of earlier 'fnesen'[1]. This earlier form traces back through Old English 'fnēosan' meaning 'to sneeze, snort', Proto-West Germanic '*fneusan', and Proto-Germanic '*fneusaną'[1], ultimately deriving from Proto-Indo-European '*pnew-' meaning 'to breathe, pant, snort, sneeze'[1]. The shift from initial 'fn-' to 'sn-' occurred during the Middle English period, mirroring similar changes in words like 'snore' and 'snort'[1].

Open questions

The initial Proto-Indo-European and Proto-Germanic forms are likely onomatopoeic, which is judged by the variety in their initial consonants. [3] [5]
The change from 'fn-' to 'sn-' may have been due to a misinterpretation of the uncommon initial sequence 'fn-' as 'sn-' written with a long s, although the sound change also followed a regular pattern seen in other vocabulary. [1]

Full etymology tree

sneeze (English), 'To expel air as a reflex induced by an irritation in the nose.'
- derived snesen (Middle English), 'To sneeze'
  - derived fnesen (Middle English), 'alternative form of snesen'
    - derived fnesan (Old English), 'to gasp; pant'
    - derived fneosan (Old English), 'to sneeze'
      - inherited *fneusan (Proto-West Germanic), 'to sneeze'
        inherited *fneusaną (Proto-Germanic), 'to sneeze'
        inherited *pnew- (Proto-Indo-European), 'to breathe, gasp'

Ancestors

*pnew- (Proto-Indo-European)
snesen (Middle English)
fneosan (Old English)
*fneusan (Proto-West Germanic)
*fneusaną (Proto-Germanic)

Cognates and doublets

fniezen (Dutch)
fnoren (Middle English)
hnjósa (Old Norse)

Sources

Updated August 2026

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