| 1 | Finnish | liitto | cooperation based on common agreement, union;... |
| 2 | Finnish | liittää | to join, connect, attach, fasten; to attach,... |
| 3 | Finnish | -ttaa | Forms causative verbs. May be applied to verbs... |
| 4 | Proto-Finnic | -ttadak | Creates causative verbs from regular verbs,... |
| 5 | Proto-Uralic | -kta- | — |