Dregs and Dreck

Dregs noun - Matter that settles to the bottom of a body of liquid.

Dreck and dregs are semantically related In some cases you can use "Dreck" instead a noun "Dregs".

Dreck noun - Discarded or useless material.

Dregs and dreck are semantically related in refuse topic. Sometimes you can use "Dregs" instead a noun "Dreck", if it concerns topics such as garbage, grime.