-kij, -kēj noun
( -s )
1. : the act, process, or degree of sinking
important in view of sinkage , heel, and change of trim that might ensue after damage — E.L.Attwood
the creek … disappeared through sinkage and evaporation — Rex Ingamells
2. : sinking , depression
a square block on which was carved a rosette set in a small sinkage — A.S.Whiton
3. : the distance from the level of the top line of a full text page to the first line of sunk matter
4. : shrinkage