Finnish word kaksi comes from Proto-Uralic *kakta (Two.), Proto-Finno-Ugric *kakta, Proto-Finno-Permic *kakta
| Dictionary entry | Language | Definition |
|---|---|---|
| *kakta | Proto-Uralic (urj-pro) | Two. |
| *kakta | Proto-Finno-Ugric (fiu-pro) | |
| *kakta | Proto-Finno-Permic (urj-fpr-pro) | |
| *kakci | Proto-Finnic (fiu-fin-pro) | Two. |
| kaksi | Finnish (fin) | Two. |