n. 1. The act or process of seeping; percolation. [ Webster 1913 Suppl. ]
2. a fluid that seeps out of a container; as, seepage from a reservoir. [ PJC ]
{ or } v. i. [ AS. sīpan to distill. ] To run or soak through fine pores and interstices; to ooze. [ Scot. & U. S. ] [ 1913 Webster ]
Water seeps up through the sidewalks. G. W. Cable. [ 1913 Webster ]