staircasing n.— «Pye will be able to increase her share in her home after a year, buying chunks of 5% or more—a process known as staircasing—at the prevailing market price.» —“A problem shared is a problem solved” by...
stair-casing n.— «The benefits of shared ownership schemes are…You can increase your share as time goes by, a process known as stair-casing.» —“How to get on the housing ladder” by Helen Adams BBC News May...