1944, from Ger. Angst "neurotic fear, anxiety, guilt, remorse" from O.H.G. angust, from the root of anger (q.v.). George Eliot used it (in Ger.) in 1849, and it was popularized in Eng. by translation of Freud's work, but as a foreign word until 1940s. O.E. had a cognate word, angsumnes "anxiety," but it died out.