Where does “allergic” come from?

Allergic comes from French -ique combined with Ancient Greek ἄλλος, ultimately from Proto-Indo-European h₂élyos meaning other.

allergic (English): Of or pertaining to allergy; Having an allergy;...

Definitions

  1. Of or pertaining to allergy; Having an allergy;...

Ancestry of “allergic”, step by step

StepLanguageWordMeaning
1English-icUsed to form adjectives from nouns with the...
2EnglishimageAn optical or other representation of a real...
3Frenchimagepicture, image; frame; first-person singular...
4Portugueseimagemimage; picture; figure; image; image; face
5Spanishimagenimage
6Italianimmagineimage; imago
7Latinimāginem
8Latinim-Alternative form of in-; form of "in"; in
9Latinīn-un-, non-, not
10Latinînin, at, on, upon, from (space)
11Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
12Proto-Italicenin
13Proto-Indo-Europeanh₁énin

Words derived from “allergic

Every word from Proto-Indo-European h₁én
allergic — Etymology, Origin & Word History | Etymology Explorer