Skulk

The word skulk has possible Scandinavian origins according to the OED. 

 It means, "to move in a stealthy or sneaking fashion, so as to escape notice." 

I recently watched the movie Four Weddings and a Funeral with some friends and in a pivotal  scene between Hugh Grant and his love interest their awkward attraction, their discussion of whether to spend time together involves the use of the word skulk many times. It is a British film, and so they do use several wonderful words and phrases not usually hear in America. I do not know if the word is used more over there but I do know that it is not a word that I hear being used very much, and I also know that I enjoy saying 'skulk' and plan on doing so more often!