sneaker
SNEE-ker · noun
English
Origin
Sneaker comes from sneak plus the agent suffix -er, meaning one who sneaks. The shoe sense was applied because these shoes let you move quietly.
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Journey
The word started as a simple label for someone who sneaks, and was later given to a type of shoe specifically because of how silently it lets a person walk.
Related words
It shares its root directly with sneak itself, the verb it was built from.