Middle English word unikorn comes from Latin corniculum, Latin cornu, and later Latin unicornis (One-horned. A unicorn.)
| Dictionary entry | Language | Definition |
|---|---|---|
| corniculum | Latin (lat) | A horn-shaped ornament on the helmet, awarded for bravery.. A little horn. |
| cornu | Latin (lat) | (figuratively) power, strength, might. (musical instruments) a horn as a musical instrument. A horn, antler. A tusk. An arm or wing of an army. Any substance like the material of a horn, such as the bill of a bird. The end of a book or scroll, usually made of ivory. The horns of the moon. |
| unicornis | Latin (lat) | One-horned. A unicorn. |
| unicorne | Old French (fro) | Unicorn (mythical beast). |
| unicorne | Anglo-Norman (xno) | |
| unikorn | Middle English (enm) |