Where does “one” come from?

One comes from Middle English on, Old English ān, Proto-Germanic andi, and Proto-Indo-European en, ultimately from the Proto-Indo-European root ḱeh₃i-.

one (English): The number represented by the Arabic numeral 1;...

Definitions

  1. The number represented by the Arabic numeral 1;...

Ancestry of “one”, step by step

one traces back through 3 separate lines of ancestry.

via Middle English one

StepLanguageWordMeaning
1Middle EnglishoneAlternative form of on; Alternative form of hone;...
2Middle Englishonento unify; to join together; to gather together;...
3Middle English-enDenotes the past participle form when attached to...
4Old English-enmæġþ + API → mæġden; cocc + API → cycen, cicen;...
5Old Norse-innUsed to create adjectives from nouns, meaning...
6Proto-Norse-īna-
7Proto-Germanic-īnaz-en
8Proto-Indo-European-iHnosCreates adjectives of materials
9Proto-Indo-European-no-adjectival suffix

via Middle English an

StepLanguageWordMeaning
1Middle EnglishanAlternative form of in; Alternative form of and;...
2Old Englishondand
3Old Englishandand; even; also
4Proto-Germanicandiin addition, furthermore, and
5Proto-Indo-Europeanh₂éntiopposite; near; in front
6Proto-Indo-Europeanh₂éntsforehead; front
7Proto-Indo-Europeanh₂ent-face; forehead; front
8Proto-Indo-Europeanh₂en-on, onto

via Middle English oan

StepLanguageWordMeaning
1Middle Englishoan

Words derived from “one

Every word from Proto-Indo-European -no-