Meaning of un- | Babel Free

Definitions

1. prefixed form of un (“at, on”)
   morpheme
2. at, to, toward
   morpheme
3. on, up
   morpheme
4. used to make certain intransitive verbs transitive
   morpheme

Examples

“léien (“to tell a lie”) + un- → uléien (“to lie to someone”)”

CEFR level