Old English spedig "prosperous, wealthy," from speed (n.) + -y (2). Meaning "moving swiftly" is from late 14c. Related: Speedily; speediness. Speedy Gonzales, Warner Brothers studios talking cartoon mouse, debuted in a 1953 short directed by Bob McKimson.
a speedy errand boy
a speedy car
he has a right to a speedy trial
hoped for a speedy resolution of the problem
a speedy recovery
speeding
Speedo
speedometer
speed-trap
speedway
speedy
*spek-
spell
spellbind
spellbound
spell-check