Complex sentence: Jihadism (also jihadist movement or jihadi movement) refers to the renewed focus on armed jihad in Islamic fundamentalism since the later 20th century, but with a continuous history reaching back to the early 19th century (see Fula jihads).
Split into simpler sentences: Jihadism (also jihadist movement or jihadi movement) is used to refer to armed jihad in Islamic fundamentalism. This has been a major meaning of the term since the later 20th century, but with a continuous history reaching back to the early 19th century (see Fula jihads).