Below is a list of German expressions used in English. Many of these are used to imply that the thing being expressed is German, as in Frau or Reich, although sometimes it has no German implication, as in doppelganger or angst.
... Also extremely common is vowel gradation; every root has (not necessarily all distinct) zero, guna[?], and vrdhii[?] grades. If V is the vowel of the zero grade, the guna ...