Late 19th century; earliest use found in Sabine Baring-Gould (1834–1924), Church of England clergyman, author, and folksong collector. From muddle + -dom.
Definition of muddledom in US English:
muddledom
nounˈmʌdldəm
The condition of muddle; prevalence of muddle.
Origin
Late 19th century; earliest use found in Sabine Baring-Gould (1834–1924), Church of England clergyman, author, and folksong collector. From muddle + -dom.