muddle up

muddle something up

to mix something up; to make something confusing. You really muddled the language of this contract up. Who muddled up the wording?

Name	Pronounced	Usage
Isebella	iz-ə-BEL-ə	English (Rare)
Tielo	-	Medieval German
Sallie	SAL-ee	English
Avksentiy	-	Russian
Alfy
Magdalen	['mægdəlin]