parathesis /pə-rathˈi-sis/

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

• half-caps
• half-caste
• half-castes
• half-centuries
• half-century
• half-chance
• half-chances
• half-checked
• half-cheek
• half-cheeks
• half-close
• incandesces
• incandescing
• incantation
• incantational
• incantations
• incantator
• incantators
• incantatory
• incapabilities
• incapability
• incapable
• incapables
• incapably
• incapacious