every

The story

1. Proto-Indo-European*h₂ey-
2. Proto-Indo-European*h₂óyu
3. Proto-Germanic*aiwaz
4. Proto-West Germanic*aiw
5. Old Englishā
6. Proto-Indo-European*h₁én
7. Proto-Germanic*in
8. Proto-West Germanic*in
9. Old Englishin
10. Proto-Indo-European*perkʷ-
11. Proto-Indo-European*pérkus
12. Proto-Germanic*ferhuzder.?
13. Proto-Germanic*ferhwą
14. Proto-West Germanic*ferh
15. Old Englishfeorh
16. Old Englishǣfre
17. Proto-West Germanic*aiwgahwalīk
18. Old Englishǣġhwelċ
19. Old Englishǣlċ
20. Middle Englishevery
21. English todayevery

Inherited from Middle English every, everich, everych, from Old English ǣfre ǣlċ, ǣfre ǣġhwelċ. By surface analysis, ever + each or ever + which.