The word you want is swale. It is a small ditch about 6 to 8 inches deep and about 10 feet wide. Be sure the swale is directed down slope and around the house. The extra soil can be used to create a gently sloping mound on the down slope side. This mound increased the overall depth. The size described can handle a lot of runoff but still be easy to cross with a lawn mower.
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