terpsichorean

In Greek and Roman mythology, Terpsichore was one of the nine muses, those graceful sister-goddesses who presided over learning and the arts. Terpsichore was the patron of dance and choral song (and later lyric poetry), and in artistic representations she is often shown dancing and holding a lyre. Her name, which earned an enduring place in English through the adjective terpsichorean, literally means "dance-enjoying," from terpsis, meaning "enjoyment," and choros, meaning "dance." Choros is also the source of choreography and chorus (in Athenian drama, choruses consisted of dancers as well as singers). The only other word we know that incorporates terpsis is terpodion, an obsolete term for a piano-like musical instrument that was invented around 1816 but never really caught on.