Where does “salaismenot” come from?

salaismenot (Finnish) comes from Finnish salainen, from Finnish sala, from Proto-Finno-Ugric *sala, from Proto-Uralic śala — elm.

Ancestry of “salaismenot”, step by step

salaismenot traces back through two separate lines of ancestry.

via Finnish salainen

StepLanguageWordMeaning
1Finnishsalainensecret, clandestine; arcane
2FinnishsalaA secret
3Proto-Finno-Ugric*sala—
4Proto-Uralicśalaelm

via Finnish meno

StepLanguageWordMeaning
1Finnishmenogoing; course, ride; expense, expenditure
2Proto-Finnicmenogoing
Every word from Proto-Uralic śala →Every word from Proto-Finno-Ugric *sala →Every word from Finnish sala →