to, at, in or into the home, office, etc. of · by extension, to, at or in the country of · in; among (a group of things or people of the same type)
köken: Inherited from Middle French chez, from Old French chies, from Latin casa (“house”). Doublet of case. The lack of final -e may be due to contraction in unstressed position; however, it has also been explained as the continuation of a Proto-Romance dative-genitive form case (from Latin casae).