prefix
Etymology: Middle English, not, out, forth, away, from Old French & Latin; Old French, out, forth, away, from Latin, from ex- — more at ex-
1.
a. : not
e carinate
e rostrate
b. : missing : absent
E cardines
e dental
2. : out : on the outside
e scribe
3. : thoroughly
e vaporize
4. : forth
e radiate
5. : away
e luvium