Where does “allergen” come from?

allergen (English) comes from English allergy, from German Allergie, from Ancient Greek ἄλλος, from Ancient Greek κρίνω, from Proto-Hellenic kríňňō, from Proto-Indo-European krinyéti, from Proto-Indo-European krey- — to sift, separate, divide.

allergen (English): A substance which causes an allergic reaction

Definitions

  1. A substance which causes an allergic reaction

Ancestry of “allergen”, step by step

StepLanguageWordMeaning
1EnglishallergyA disorder of the immune system causing adverse...
2GermanAllergieallergy
3Ancient Greekἄλλοςother, another, different, else; in combination...
4Ancient GreekκρίνωTo separate, divide, part, distinguish between...
5Proto-Hellenickríňňō
6Proto-Indo-Europeankrinyéti
7Proto-Indo-Europeankrey-to sift, separate, divide

Words derived from “allergen

Every word from Proto-Indo-European krey-Every word from Proto-Indo-European krinyétiEvery word from Proto-Hellenic kríňňō