parathesis /pə-rathˈi-sis/

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

• coistrils
• coit
• coital
• coition
• coitions
• coits
• coitus
• coituses
• coitus interruptus
• coitus reservatus
• cojoin
• cojoined
• cojoining
• cojoins
• cojones
• coke
• Coke
• coked
• coked-up
• cokehead
• cokeheads
• cokernut
• cokernuts
• cokes
• cokeses