[ stair-step ]
/ ˈstɛərˌstɛp /
verb (used without object), stair·stepped, stair·step·ping.
to occur or move in a regular pattern suggesting the steps of a staircase: housing units stairstepping down the hill to the edge of the lake.
suggesting or resembling the steps of a staircase, as in movement or shape: stairstep progress in improved appliance sales.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019