1790, "clever; showy, gaudy," from kick (n.) in the 18c. sense "that which is stylish" + -y (2). Meaning "full of thrills, providing kicks" is from 1968. Kickish "given to kicking" is from 1580s.
kick-off
kickshaw
kicksie-wicksie
kickstand
kick-start
kicky
kid
kidder
Kidderminster
kiddo
kiddy