Here's what we know:
* Earliest documented use: The earliest documented use of "groovy" in a slang context is often cited as being in a 1963 issue of "The Village Voice," a New York City newspaper.
* Popularization in the 1960s: The word gained traction and popularity throughout the 1960s, becoming synonymous with the counterculture movement, youth culture, and the "hippie" lifestyle. It was often used to describe something cool, stylish, or exciting.
* Origins and influences: There's no definitive answer to where "groovy" originated. Some believe it may have derived from the jazz term "groovy" meaning "swinging" or "exciting." Others suggest it may have been influenced by the word "groove," which refers to a physical indentation or a musical rhythm.
While the exact date of its first use may remain unclear, it's certain that "groovy" became a defining word of the 1960s and a symbol of a generation's unique style and attitude.