theonymy means the names given to gods, collectively. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “theonymy” is a great word
THEONYMY — [Noun] The names given to gods, collectively, or the study of such names. From the combining form theo- (from Greek theos, meaning 'god') and -onymy (from Greek onyma, meaning 'name'), thus 'the naming of gods'. Unlike a theonym (which denotes a single divine proper name) or the broad discipline of onomastics (which surveys all proper names), theonymy is the specific, sacred lexicon. It is the resonant litany of epithets for Athena Parthenos, the faded glyphs for a forgotten sun deity, and the careful cross-referencing of 'Diaus Pitar' with 'Zeus Pater'—a map of human awe traced through the evolution of sound.
Etymology
From theo- + -onymy.
noun
- The names given to gods, collectively.“The widespread occurrence of both roots in the theonymy of the Indo-European world, their prevalent merger into one divine name, and the striking resemblance in mythological functions tied to this onomastics enable us to look for the same ancestry of all historically attested variants.”