Where does “photoallergen” come from?
photoallergen (English) comes from English photo, from English photography, from French photographie, from Ancient Greek φωτο-, from Ancient Greek φῶς, from Proto-Hellenic pʰáos, from Proto-Indo-European bʰéh₂os, from Proto-Indo-European bʰeh₂-.
photoallergen (English): A substance that generates an allergic response in the presence of light
Definitions
- A substance that generates an allergic response in the presence of light
Ancestry of “photoallergen”, step by step
photoallergen traces back through two separate lines of ancestry.
via English photo
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | photo | A photograph; A photo finish; To take a... |
| 2 | English | photography | The art and technology of producing images on... |
| 3 | French | photographie | photography; photograph |
| 4 | Ancient Greek | φωτο- | — |
| 5 | Ancient Greek | φῶς | Attic form of φᾰ́ος |
| 6 | Proto-Hellenic | pʰáos | — |
| 7 | Proto-Indo-European | bʰéh₂os | — |
| 8 | Proto-Indo-European | bʰeh₂- | to shine, glow light; to speak, say |
| 9 | Proto-Indo-European | bʰeh₂-s-ri- | — |
via English allergen
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | allergen | A substance which causes an allergic reaction |
| 2 | English | allergy | A disorder of the immune system causing adverse... |
| 3 | German | Allergie | allergy |
| 4 | Ancient Greek | ἄλλος | other, another, different, else; in combination... |
| 5 | Ancient Greek | κρίνω | To separate, divide, part, distinguish between... |
| 6 | Proto-Hellenic | kríňňō | — |
| 7 | Proto-Indo-European | krinyéti | — |
| 8 | Proto-Indo-European | krey- | to sift, separate, divide |