Where does “aestival” come from?

aestival (English) comes from Latin aestivālis, from Latin aestīvus, from Latin autumnus, from Latin auctumnus, from Proto-Indo-European h₃ewǵ- — cold.

aestival (English): Alternative spelling of estival

Definitions

Alternative spelling of estival

Ancestry of “aestival”, step by step

Step	Language	Word	Meaning
1	Latin	aestivālis	—
2	Latin	aestīvus	—
3	Latin	autumnus	autumn, fall; autumn; autumnal
4	Latin	auctumnus	autumn; autumn; autumnal
5	Proto-Indo-European	h₃ewǵ-	cold

Every word from Proto-Indo-European h₃ewǵ- →

aestival — Etymology, Origin & Word History | Etymology Explorer