Etymology Explorer › English

Where does “who's” come from?

who's (English) comes from English -’s, from Middle English -s, from Old English -es, from Proto-Germanic -as, from Proto-Indo-European -ēs, from Proto-Indo-European -ess, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Ancestry of “who's”, step by step

StepLanguageWordMeaning
1English-’s—
2Middle English-sAdverbial genitive ending, developed into the...
3Old English-espossessive marker, indicating that an object...
4Proto-Germanic-as—
5Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
6Proto-Indo-European-ess—
7Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

Words derived from “who's”

  • whosit
Every word from Proto-Indo-European -os →