"1 more than thirteen; the number which is one more than thirteen; a symbol representing this number;" c. 1300, from Old English feowertyne; see four + -teen. Compare Old Saxon fiertein, Old Frisian fiuwertine, Dutch veertien, Old High German fiorzehan, German vierzehn, Danish fjorten, Gothic fidwortaihun.
Fourierism
four-poster
fourscore
foursome
four-square
fourteen
fourteenth
fourth
fourth estate
four-wheeled
fovea
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