IPA: //ˈdʒækˌbuːt//
KK: /ˈdʒækˌbut/
A type of strong military boot that goes up above the knee, often made of shiny black leather.
The soldiers marched in their jackboots, showcasing their discipline and strength.
Jackboot is derived from the word 'jack' (from Middle English 'jakke', a diminutive of 'Jack', a common name) and 'boot' (from Old English 'bōt', meaning a covering for the foot). The term originally referred to a type of heavy, military boot worn by soldiers, particularly in the 17th and 18th centuries.
Think of 'jack' as a common name for a soldier and 'boot' as a covering for the foot — together, they remind you that a jackboot is a type of heavy boot worn by soldiers.
No commonly confused words.