Englishism
/ˈɪŋ(ɡ)lɪʃɪz(ə)m/noun
1= Englishness. Also: attachment to what is English; an English mode of procedure; a sign or product of an English character.
2An English idiom or form of speech; = Anglicism.
Origin
Early 19th century; earliest use found in Fanny Burney (1752–1840), writer. From English + -ism.