|Origin:||Probably from a Scandinavian language.|
|Origin:||Probably from Middle Dutch schuren, from Old French escurer, from Late Latin excurare 'to clean off', from Latin cura 'care'|
to search very carefully and thoroughly through an area, a document etc
scour something for something
Her family began to scour the countryside for a suitable house.
2 also scour outDHC
to clean something very thoroughly by rubbing it with a rough material [= scrub]:
Ada was scouring out the pans.
3 also scour outHE
to form a hole by continuous movement over a long period:
Over the years, the stream had scoured out a round pool in the rock.