ETYM AS. fîftig; akin to Old High Germ. finfzug, fimfzuc, German fünfzig, funfzig, Goth. fimftigjus. Related to Five, and Ten, Fifteen.
Being ten more than forty; SYN. 50, l.
The cardinal number that is the product of ten and five; SYN. 50, L.
50 · L · fifty dollar bill