Meaning ‘near, at, in, on, within’

The final sound of this prefix sometimes changes (assimilates) to match the beginning sound of the base/word.

en-em-
enable
enact
enamour (US enamor)
encamp
encase
enchant
enclose
encode
encrust
encrypt
endear
endorse
endow
endure
enfold
enforce
engage
engorge
engrave
engulf
enjoin
enjoy
enlarge
enlist
enliven
ennoble
enmesh
enquire
enrage
enrich
enrol (US enroll)
enslave
ensnare
ensure
enthral
enthuse
entice
entitle
entomb
entrance
entrap
entreat
entrust
entwine
envelop
envoy
embalm
embargo
embark
embarrass
embed
embellish
embezzle
embitter
embody
embolden
emboss
embrace
embroider
embroil
empanel
empathy
emphasis
employ
empower