ritual dancing vs terpsichore

ritual dancing and terpsichore both are nouns.

Word	Noun	Adjective	Verb	Adverb
ritual dancing	Yes	No	No	No
terpsichore	Yes	No	No	No

As nouns, terpsichore is a hypernym of ritual dancing; that is, terpsichore is a word with a broader meaning than ritual dancing:

ritual dancing: a dance that is part of a religious ritual
terpsichore: taking a series of rhythmical steps (and movements) in time to music

Other hypernyms of ritual dancing include dance, dancing, saltation.

ritual dancing (noun)	terpsichore (noun)
a dance that is part of a religious ritual	taking a series of rhythmical steps (and movements) in time to music