Etymology Explorer › English

Where does “pyrogen” come from?

pyrogen (English) comes from English Gen, from English again, from Middle English agayn, from Old English onġēan, from Old English on-, from Old English and-, from Proto-West Germanic anda-, from Proto-Germanic anda- — on, onto.

pyrogen (English): Any substance that produces fever, or a rise in...

Definitions

  1. Any substance that produces fever, or a rise in...

Ancestry of “pyrogen”, step by step

StepLanguageWordMeaning
1EnglishGenA member of the Gen Movement, a youth expression...
2EnglishagainAnother time; once more; Over and above a factor...
3Middle Englishagaynagain
4Old Englishonġēan—
5Old Englishon-forming verbs and adjectives from participles and...
6Old Englishand-against, opposing; in return, back; facing,...
7Proto-West Germanicanda-against, opposing; in return, back; facing,...
8Proto-Germanicanda-against, opposing; un-, de-
9Proto-Indo-Europeanh₂éntiopposite; near; in front
10Proto-Indo-Europeanh₂éntsforehead; front
11Proto-Indo-Europeanh₂ent-face; forehead; front
12Proto-Indo-Europeanh₂en-on, onto
Every word from Proto-Indo-European h₂en- →