parathesis /pə-rathˈi-sis/

1. Apposition (grammar)
2. The compounding of words without change, as (Latin) rēspūblica from rēs and pūblica (philology)

• grues
• gruesome
• gruesomely
• gruesomeness
• gruesomenesses
• gruesomer
• gruesomest
• grufe
• grufes
• gruff
• gruffer
• gruffest
• gruffish
• edulcorates
• edulcorating
• edulcoration
• edulcorations
• edulcorative
• edulcorator
• edulcorators
• Eduskunta
• Eduskuntas
• edutainment
• edutainments
• Edwardian