Wiktionary
widthways
a. widthwise The direction of the width of an object or place. adv. widthwise Directed across the width of an object or place.
Usage examples of "widthways".
A few cars behind where Guest was standing a once pristine bright red, two-seater sports car lay on its roof, straddled widthways across the remains of two other vehicles.
As the strips were extruded I caught them, and cut them widthways, several times.