Where does “ätare” come from?

ätare (Swedish) comes from Swedish äta, from Old Swedish æta, from Old Norse eta, from Proto-Germanic etaną, from Proto-Indo-European h₁édti, from Proto-Indo-European h₁ed- — to eat.

Ancestry of “ätare”, step by step

Step	Language	Word	Meaning
1	Swedish	äta	to eat
2	Old Swedish	æta	to eat; to chew, bite
3	Old Norse	eta	crib, manger; cancer; to eat
4	Proto-Germanic	etaną	to eat
5	Proto-Indo-European	h₁édti	to eat
6	Proto-Indo-European	h₁ed-	to eat

Every word from Proto-Indo-European h₁ed- →Every word from Proto-Indo-European h₁édti →Every word from Proto-Germanic etaną →