Emily Dickinson Lexicon

TWO, a. [Sax. twa; Goth. twa, twai, twos; D. twee; G. zwei; Sw. två; Ir. and Gaelic, da or do; Russ. tva, tvoe. Slav. dwa; Sans. dui, dwaja; Gipsy, duj; Hindoo, Ch. and Pers. du; L. duo; Gr. δυο; It. due; Sp. dos; Port. dous; Fr. deux.]

1. One and one. Two similar horses used together are called a span, or a pair.
2. Two is used in composition; as, in two-legged. Man is a two-legged animal.