caution (English)
Where does "caution" come from?
The word 'caution' traces back to the Proto-Indo-European root *(s)kewh₁-, meaning 'to perceive.' Over time, it evolved into the Latin 'caveō,' which shifted from a general sense of awareness to the more specific 'cautiō,' meaning security or a pledge. Following its transition through Old French and into Middle English as 'caucioun,' it eventually settled into its modern meaning of careful prudence and professional warning.
Full etymology tree
- caution (English), 'Prudence when faced with, or when expecting to face, danger; care taken in order to avoid risk or harm.'
- inherited caucioun (Middle English)
- borrowed caution (Old French)
- inherited cautiō (Latin), 'precaution, caution'
- derived cautus (Latin), 'cautious, careful'
- derived cavēre (Latin), 'third-person plural perfect active indicative of caveō'
- inherited *kaweō (Proto-Italic), 'to beware, to be mindful of'
- inherited *(s)kowh₁éyeti (Proto-Indo-European), 'to perceive'
- derived *(s)kewh₁- (Proto-Indo-European), 'to perceive'
- inherited *(s)kowh₁éyeti (Proto-Indo-European), 'to perceive'
- inherited *kaweō (Proto-Italic), 'to beware, to be mindful of'
- derived cavēre (Latin), 'third-person plural perfect active indicative of caveō'
- derived cautus (Latin), 'cautious, careful'
- inherited cautiō (Latin), 'precaution, caution'
- borrowed caution (Old French)
- inherited caucioun (Middle English)
Direct ancestors
Updated July 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris