1900 G. B. Shaw 27 Jan. (1972) II. 144 It will be some expiation for..informing a stupended public that the verb ‘to scrap’ is unknown in England.
1904 G. B. Shaw 6 Dec. (1972) II. 470 You will be stupended at all meanness in this obvious & cheap retort.
2012 fanfiction.net 13 Aug. (O.E.D. Archive) As soon as he saw us, he paused, a stupended look all over his face. ‘What is he doing?’