Origin of twentyMiddle English twenti from Old English twegentig, literally , two tens (akin to German zwanzig, Gothic twai tigjus) from twegen, twain + -tig, -ty
- the cardinal number between nineteen and twenty-one; 20; XX
- Informal a twenty-dollar bill
the Roaring Twenties
- The cardinal number equal to 2 × 10.
- twenties a. A decade or the numbers from 20 to 29: The children are now in their twenties. The temperature dipped into the twenties.b. often Twenties The decade from 20 to 29 in a century.
- A twenty-dollar bill.
Origin of twentyMiddle English from Old English twēntig ; see dwo- in Indo-European roots.
From Middle English twenty, twenti, from Old English twÄ“ntiÄ¡ (“twenty", literally “two tens"), from Proto-Germanic *twaintigiwiz, *twai tigiwiz, an old compound of *twain-/*twai (see two) and *-tigaz/*teguz, equivalent to two +"Ž -ty, or twain +"Ž -ty. Cognate with Scots twenty, tuenty (“twenty"), West Frisian tweintich (“twenty"), Dutch twintig (“twenty"), German zwanzig (“twenty"), Danish tyve.