[seep] vi [alter. of earlier sipe, fr. ME sipen, fr. OE sipian; akin to MLG sipen to seep] (1790) 1: to flow or pass slowly through fine pores or small openings: ooze "water ~ed in through a crack"
2. a: to enter or penetrate slowly "fear of nuclear war had ~ed into the national consciousness --Tip O'Neill" b: to become diffused or spread "a sadness ~ed through his being --Agnes S. Turnbull"
[2]seep n (ca. 1825) 1 a: a spot where a fluid (as water, oil, or gas) contained in the ground oozes slowly to the surface and often forms a pool b: a small spring
2: seepage -- seepy adj