Also: widthways (ˈwɪdθˌweiz, ˈwɪtθ-, or, often ˈwɪθ-)
Word origin
[1880–85; width + -wise]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: Chief of Staff, automatism, interface, pari-mutuel, regionalism-wise is a suffix used to form adverbs denoting manner, position, direction, reference,etc. Other words that use the affix -wise include: barwise, clockwise, flatwise, piecewise, warpwise