fenster
noun
fen·ster
ˈfenztə(r),
-n(t)st-
plural -s
: an erosional opening down through overthrust rock exposing the underlying rock
called also window
Word History
Etymology
German, literally, window, from Old High German; akin to Old English fenester window, Middle Low German & Middle Dutch venster, venstere; all from a prehistoric West Germanic word borrowed from Latin fenestra