idioglossia /id-i-ō-glosˈi-ə/

1. A condition in which pronunciation is so bad as to be quite unintelligible
2. A private language developed between two or more children, esp twins, etc

• usurpature
• usurpatures
• usurped
• usurpedly
• usurper
• usurpers
• usurping
• usurpingly
• usurpings
• usurps
• usury
• usus loquendi
• usw
• USW
• usward
• ut
• UT
• Ut.
• utas
• utases
• UTC
• ut dict.
• ut dictum
• ute
• Ute