SEEP

noun

1. A small spring, pool, or other spot where liquid from the ground (e.g. water, petroleum or tar) has oozed to the surface; a place of seeping.
2. Moisture, liquid, gas, etc. that seeps out; a seepage.
3. The seeping away of a liquid, etc.

verb

1. To ooze or pass slowly through pores or other small openings, and in overly small quantities; said of liquids, etc.
2. To enter or penetrate slowly; to spread or diffuse.
3. To diminish or wane away slowly.