Where does “can't” come from?

can't (English) comes from English -n’t, from English Not, from Middle English not, from Middle English nought, from Old English nōwiht, from Old English ne, from Old English ealles, from Old English -es — Creates action nouns or result nouns from verbs;...

can't (English): (negative auxiliary); be unable to; not have the ability to (whether due to lacking relevant strength or skill or knowledge or supplies, or due to logical impossibility, etc)

Definitions

  1. (negative auxiliary); be unable to; not have the ability to (whether due to lacking relevant strength or skill or knowledge or supplies, or due to logical impossibility, etc)

Ancestry of “can't”, step by step

StepLanguageWordMeaning
1English-n’t
2EnglishNot
3Middle Englishnotnot; nothing, nought; nobody, no person
4Middle Englishnoughtnothing, none; not; iniquitous, wicked
5Old Englishnōwiht
6Old Englishnenot; or, and not; "ne... ne..." is used to mean "...
7Old Englisheallescompletely, wholly, entirely; totally,...
8Old English-espossessive marker, indicating that an object...
9Proto-Germanic-asused in formation of adverbs
10Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
11Proto-Indo-European-ess
12Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

Words derived from “can't

Every word from Proto-Indo-European -os