Merriam-Webster's Collegiate® Dictionary, 11th Edition
HYPE
I. noun
Etymology: by shortening & alteration from hypodermic
Date: 1924
a narcotics addict, hypodermic ,
II. transitive verb (hyped; hyping)
Date: 1938
stimulate , enliven , increase , hyped-up adjective
III. transitive verb (hyped; hyping)
Etymology: origin unknown
Date: circa 1931
put on , deceive , to promote or publicize extravagantly ,
IV. noun
Date: 1955
deception , put-on , publicity ,
V. adjective
Date: 1989
excellent , cool