Where does “ætiologic” come from?

ætiologic (English) comes from English ætiology, from Latin aetiologia, from Ancient Greek αἰτιολογία, from Ancient Greek -λογίᾱ.

ætiologic (English): Obsolete form of aetiologic

Definitions

Step	Language	Word	Meaning
1	English	ætiology	Obsolete spelling of aetiology
2	Latin	aetiologia	—
3	Ancient Greek	αἰτιολογία	—
4	Ancient Greek	-λογίᾱ	—

ætiologic — Etymology, Origin & Word History | Etymology Explorer