interfile /in-tər-fīlˈ/

1. To place among other items in a file
2. To combine in one file

• subtrahend
• subtrahends
• subtreasurer
• subtreasurers
• subtreasuries
• Sunday drivers
• Sunday-go-to-meeting
• Sunday painters
• Sunday punch
• Sunday punches
• Sundays
• Sunday saint
• Sunday school
• Sunday schools
• sun deck
• sundeck
• sun decks
• sundecks
• sunder
• sunderance
• sunderances
• sundered
• sunderer
• sunderers
• sundering