For"ty (?), a. [OE. forti, fourti, fowerty, AS. feowertig; feower four + suff. -tig ten; akin to OS. fiwartig, fiartig, D. veertig, G. vierzig, Icel. fjorutiu, Sw. fyratio, Dan. fyrretyve, Goth. fidwr tigjus. See Four, and Ten, and cf. Fourteen.]
Four times ten; thirtynine and one more.
© Webster 1913.
For"ty, n.; pl. Forties ().
1.
The sum of four tens; forty units or objects.
2.
A symbol expressing forty units; as, 40, or xl.
© Webster 1913.