murk

Short definition from Wiktionary

Adjective

1. 1
   Dark, murky.

Noun

1. 1
   Darkness, or a dark or gloomy environment.

Verb

1. 1
   To make murky or be murky; to cloud or obscure, or to be clouded or obscured.
2. 2
   To kill or eliminate.
3. 3
   To beat up; to injure.
4. 4
   To eliminate; to defeat overwhelmingly.