dithyramb
Concise Oxford English Dictionary © 2008 Oxford University Press:
dithyramb /ˈdɪθɪram(b)/
▶noun a wildly ecstatic choral hymn of ancient Greece, especially one dedicated to the god Dionysus.
■ a passionate or inflated speech, poem, or text.
– derivatives
dithyrambic adjective.
dithyrambic adjective.
– origin C17: via L. from Gk dithurambos.
'dithyramb' also found in these Oxford entries:

