FORTY
forty, xl, twoscore
(adjective) being ten more than thirty
forty, XL
(noun) the cardinal number that is the product of ten and four
Source: WordNet® 3.1
Etymology
Numeral
forty
The cardinal number occurring after thirty-nine and before forty-one.
Usage notes
• In modern usage, the spelling fourty is nonstandard.
Synonyms
• Arabic numerals: 40
• Roman numerals: XL
Noun
forty (plural forties)
(slang) A bottle of beer containing forty fluid ounces.
Source: Wiktionary
For"ty, a. Etym: [OE. forti, fourti, fowerty, AS. feówertig; feówer
four + suff. -tig ten; akin to OS. fiwartig, fiartig, D. veertig, G.
vierzig, Icel. fjörutiu, Sw. fyratio, Dan. fyrretyve, Goth. fidw. See
Four, and Ten, and cf. Fourteen.]
Definition: Four times ten; thirtynine and one more.
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.
Source: Webster’s Unabridged Dictionary 1913 Edition