To be smeared or covered with something like dirt, blood, or dust; often used in constructions like '〜にまみれる' or as the suffix '〜まみれ'. Usually written in kana.
子どもたちは泥にまみれて公園で遊んでいた。
The children were playing in the park covered in mud.
戦場の描写には血にまみれる場面が多い。
Battlefield descriptions often include scenes smeared with blood.
長年の努力は功績にまみれるわけではないが、評価は受けている。
Long years of effort aren't necessarily covered in glory, but they are recognized.