step·wise 
(stĕpwīz′)
(stĕpwīz′)adj.
1. Marked by a gradual progression as if step by step: "Quantum mechanics is a natural system of stepwise interactions that governs very small things" (Malcolm W. Browne).
2. Music Moving from one tone to an adjacent one.
stepwise′ adv.
- West Highland white terrier
- Westie
- West Indian
- West Indies
- West Indies Federation
- westing
- Westinghouse
- Westminster
- Westmoreland
- West Nile virus
- west-northwest
- Weston
- West Pakistan
- Westphalia
- Westphalian
- West Point
- West Prussia
- West Saxon
- West Slavic
- west-southwest
- West Virginia
- West Virginian
- westward
- westwardly
- westwards