Finnish word salainen comes from Finnish -inen, Finnish sala- (A prefix signifying secret, clandestine, concealed.)
| Dictionary entry | Language | Definition |
|---|---|---|
| -inen | Finnish (fi) | Creates adjectives from present active participles, indicating a tendency to be/do something.. Creates adjectives indicating a material of which something is made; -en. Creates adjectives signifying a certain quality; -like, -ous, -y. |
| sala- | Finnish (fi) | A prefix signifying secret, clandestine, concealed. |
| salainen | Finnish (fi) | (mysterious) arcane. Secret, clandestine (done or kept hidden). |