Early 17th century; earliest use found in Meredith Hanmer (1543–1604), Church of England and Church of Ireland clergyman and historian. From mis- + style.
Definition of misstyle in US English:
misstyle
verbˌmɪsˈstʌɪl
with objectTo style or term incorrectly.
Origin
Early 17th century; earliest use found in Meredith Hanmer (1543–1604), Church of England and Church of Ireland clergyman and historian. From mis- + style.