Where does “rhapsodomancie” come from?

rhapsodomancie (French) comes from Ancient Greek ῥαψῳδός, from Ancient Greek ᾠδή, from Ancient Greek ἀείδω, from Proto-Hellenic awéidō — to sing.

Ancestry of “rhapsodomancie”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ῥαψῳδός	rhapsodist; One who performs the poetry of a poet...
2	Ancient Greek	ᾠδή	song, ode; legend, tale, story
3	Ancient Greek	ἀείδω	To sing, chant, praise; To make various noises:...
4	Proto-Hellenic	awéidō	to sing

rhapsodomancie — Etymology, Origin & Word History | Etymology Explorer