skulk
verb
[ skʌlk ]
• keep out of sight, typically with a sinister or cowardly motive.
• "don't skulk outside the door like a spy!"
skulk
noun
• a group of foxes.
• "the skulk howls away into the night"
Origin:
Middle English: of Scandinavian origin; compare with Norwegian skulka ‘lurk’, and Danish skulke, Swedish skolka ‘shirk’.