* "Speed": This word comes from the Old English word "spēd", meaning "success", "prosperity", or "progress". It was later used to describe the rate of movement.
* "-y": This suffix was commonly added to nouns in Old English to form adjectives.
Therefore, "speedy" literally means "full of speed" or "characterized by speed."
The first recorded use of the word "speedy" in English was in the 14th century. It was originally used to describe something that was successful or prosperous, but it quickly came to be used to describe something that moved quickly.