verb/my.se/
to hide, to conceal; to hide (oneself); to squeeze through
Inherited from Middle French musser, from Old French muchier, mucier, mucer (“to hide”), from Frankish *mukkjan, *mukōn (“to hide, skulk”), from Proto-Germanic *mukjaną, *mukōną (“to hide, waylay, steal”), from Proto-Indo-European *(s)mūg- (“to rob, steal”). Cognate with Old High German mūhhōn (“to hide”). More at mooch.