Where does “antiheadache” come from?

antiheadache (English) comes from English headache, from Middle English hevedeche, from Old English hēafodeċe, from Old English eċe, from Proto-West Germanic *aki, from Proto-Germanic akiz, from Armenian աքիս, from Old Armenian աքիս — weasel, least weasel, "Mustela nivalis".

antiheadache (English): Preventing or acting against headaches

Definitions

  1. Preventing or acting against headaches

Ancestry of “antiheadache”, step by step

antiheadache traces back through two separate lines of ancestry.

via English headache

StepLanguageWordMeaning
1EnglishheadacheA pain or ache in the head; A nuisance or...
2Middle Englishhevedeche
3Old Englishhēafodeċepain in the head, headache
4Old Englisheċeache
5Proto-West Germanic*aki
6Proto-Germanicakizache, pain
7Armenianաքիսweasel, least weasel, "Mustela nivalis"
8Old Armenianաքիսweasel, least weasel, "Mustela nivalis"

via English anti

StepLanguageWordMeaning
1EnglishantiOpposed to something; That has a torsion angle...
2Englishanti-Against, hostile to; Contrasting with the norm;...
3Ancient Greekἀντι-anti-, against; like, reminiscent of
4Ancient Greekᾰ̓ντῐ́opposite
Every word from Old Armenian աքիսEvery word from Armenian աքիսEvery word from Proto-Germanic akiz