Where does “’twou’dn’t” come from?

’twou’dn’t (English) comes from English wou’dn’t, 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 — Creates action nouns or result nouns from verbs;...

Ancestry of “’twou’dn’t”, step by step

’twou’dn’t traces back through two separate lines of ancestry.

via English wou’dn’t

StepLanguageWordMeaning
1Englishwou’dn’t
2English-n’t
3EnglishNot
4Middle Englishnotnot; nothing, nought; nobody, no person
5Middle Englishnoughtnothing, none; not; iniquitous, wicked
6Old Englishnōwiht
7Old Englishnenot; or, and not; "ne... ne..." is used to mean "...
8Old Englisheallescompletely, wholly, entirely; totally,...
9Old English-espossessive marker, indicating that an object...
10Proto-Germanic-asused in formation of adverbs
11Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
12Proto-Indo-European-ess
13Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English 'twou'd

StepLanguageWordMeaning
1English'twou'd
Every word from Proto-Indo-European -osEvery word from Old English -esEvery word from Old English ealles