Four (fōr), a. [OE. four, fower, feower, AS. feówer; akin to OS. fiwar, D. & G. vier, OHG. fior, Icel. fjōrir, Sw. fyra, Dan. fire, Goth. fidwōr, Russ. chetuire, chetvero, W. pedwar, L. quatuor, Gr. tettares, tessares, pisyres, Skr. catur. √302. Cf. Farthing, Firkin, Forty, Cater four, Quater-cousin, Quatuor, Quire of paper, tetrarch.] One more than three; twice two.
[1913 Webster]