► 接尾辞みどろ  [(1)みどろ]    
meaning:  cover  rank: 4☆ 
彼は
血みどろで
倒れていた ⇨ He was lying on the ground covered in blood  
(☛ Usually covered in liquid)☆ 
彼等は
汗みどろで
働いている ⇨ They’re are working covered in sweat  
(☛ Usually covered in liquid)More examples:- 彼等は汗みどろで働いている ⇨ They’re working covered in sweat