Webster's Revised Unabridged Dictionary · 1913

groovy

groovy (gro"vy) , adjective

Very pleasant or very enjoyable; marvelous; wonderful; excellent; -- expressing strong approval, usually of enjoyable experiences. [informal, 1960's]
2.
Very chic; as, groovy clothes. [British informal]
3.
same as hip. [informal, 1960's]