IPA: /ɪnˈfoʊldər/
KK: /ɪnˈfoʊldər/
A person or thing that wraps or surrounds something else.
The enfolder carefully wrapped the gift in colorful paper.
Enfolder is formed from "en-" (meaning to cause to be in) and "folder" (from Old English "foldian", meaning to fold). The word means to cause something to be folded in or enclosed.
Think of 'en-' meaning to cause to be and 'folder' meaning to fold — this helps you remember that 'enfolder' means to cause something to be folded in.