Finnish word voittamaton comes from Proto-Finnic *-ttadak, Proto-Finnic *voidak (Can, to be able.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *-ttadak | Proto-Finnic (fiu-fin-pro) | Creates causative verbs from regular verbs, meaning "to cause to (verb)". |
| *voidak | Proto-Finnic (fiu-fin-pro) | Can, to be able. |
| voida | Finnish (fin) | (in negative sentences) should (not). (in the conditional mood) could. (intransitive) (to enquire about wellbeing, or as a formal greeting) to be, feel, do. (transitive, auxiliary, + infinitive). (transitive, auxiliary, + infinitive) can, to be able to, to be capable. May, to be allowed, to be permitted. |
| *voittadak | Proto-Finnic (fiu-fin-pro) | To win. |
| voittaa | Finnish (fin) | (intransitive) To win.. (transitive) To beat, conquer, overcome (a competitor); to win (a prize). |
| voittamaton | Finnish (fin) | Invincible, unwinnable. |