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

• facia
• facial
• facial angle
• facialist
• facialists
• facially
• facial mapping
• facials
• -facient
• facies
• facile
• facilely
• facileness
• facilenesses
• facile princeps
• facilitate
• facilitated
• facilitates
• facilitating
• facilitation
• facilitations
• facilitative
• facilitator
• facilitators
• facilities