Meaning
Carbonaceous shale; small coal; slate, dross, or rubbish in coal.
Etymology
Origin: Old English
From Middle English *drob, drof, from Old English *drōb, drōf (“turbid; dreggy; dirty”), from Proto-West Germanic *drōbī, from Proto-Germanic *drōbuz (“turbid”).
Synonyms & Antonyms
NYT Puzzle Appearances
Accepted in 2 recorded puzzles: