'anglicanism' originates from English, specifically from 'Anglican' (referring to the Church of England) plus the suffix '-ism', where 'Anglican' meant 'of England' and '-ism' denoted a system or practice.

'Anglican' was derived from Medieval Latin 'Anglicanus' (meaning 'English'), and the suffix '-ism' was added to form 'anglicanism', which then became 'anglicanisms' as its plural.

Initially, it meant 'the practices or beliefs of the Church of England', and in plural, it refers to multiple such practices or expressions.