verb / noun
seep
SEEP/siːp/
To pass slowly through small gaps.
Water seeps through the clay vessel's hairline crack and forms a tiny puddle.

Etymology
The earlier verb sipe described gentle oozing through pores. Seep retains that image of gradual passage through tiny openings, rather than movement in a freely flowing stream.
In context
that will lead to local symptoms of swelling pain and redness but in some patients these reactions can seep or pass through the blood vessels
More examples
- Water seeped into my boots as I crossed the marsh.
- Cold air is seeping through gaps around the window.
- A muddy seep marks where groundwater slowly emerges on the hillside.
Forms
seep · seeps · seeped · seeping
seepage noun — The slow passage of liquid through gaps.