parathesis /pə-rathˈi-sis/

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

• subtext
• subtexts
• subthreshold
• subtidal
• subtil
• subtile
• subtilisation
• subtilisations
• subtilise
• subtilised
• subtilises
• subtilising
• subtilization
• subtilizations
• subtilize
• subtilized
• subtilizes
• subtilizing
• subtitle
• subtitled
• subtitles
• subtitling
• subtle
• subtleness
• subtlenesses