Definition of "Islamism"

Muhammed [...] first manifested and obserued the Religion of Islamisme [...]

1626, Samuel Purchas, Purchas his Pilgrimage, or Relations of the World, fourth edition, page 1013

‘There is no God but God, and Mahommed is his prophet’. A confession of faith which is in itself a declaration of Islamism.

1827, Walter Scott, The Life of Napoleon Buonaparte

Those of Meshed further assured him, that at Candahar there are descendants of Simeon, also of Joseph (i. e. of Ephraim and Manasseh,) though they were outwardly conformed to Islamism;³ and he himself, when in Arabia, met with Israelites who declared themselves, and were believed by the Jews, to be of the tribe of Dan. Their usual residence was near Terim in Hatramawt.

1841, Joshua William Brooks, “The Present Conditions and Future Prospects of the Jews”, in The History of the Hebrew Nation: From Its First Origin to the Present Time‎, London: R. B. Seeley and W. Burnside, pages 569–570

They were the outposts and frontiers of Islamism.

1852, Washington Irving, Tales from the Alhambra

Tibi makes an absolute distinction between Islamism, which he regards as a totalitarian political ideology resembling Nazism and communism, and Islam, the religion to which he adheres.

2012, Malise Ruthven, ‘Reason & Religion’, Literary Review, number 399