epyllion
Concise Oxford English Dictionary © 2008 Oxford University Press:
epyllion /ɪˈpɪlɪən, ɛ-/
▶noun (pl. epyllia) a narrative poem resembling an epic but of shorter extent.
– origin C19: from Gk epullion, dimin. of epos ‘word, song’, from eipein ‘say’.
'epyllion' also found in these Oxford entries:

