parathesis /pə-rathˈi-sis/

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

• rascality
• rascalliest
• rascal-like
• one-nighter
• one-nighters
• one-night stand
• one-night stands
• one of a thousand
• one-off
• one-offs
• one of these days
• one of those things
• one-one
• one-on-one
• one or two
• one over the eight
• one-parent families
• one-parent family
• one-person
• one-piece
• one-pieces
• oner
• onerous
• onerously
• onerousness