Talk:septology

Septology vs heptalogy
Googling the term  brings up this result but the word is considered either misspelled or not a word. Also included in the search results in the word. Both of these terms allegedly mean a series of seven (7) things.

Is one of these terms preferred over the other? When might each be appropriate? ProfessorTom (talk) 21:24, 30 September 2019 (UTC)