Where does “koostelma” come from?

koostelma (Finnish) comes from Finnish -lmä, from Finnish -ellä — Front vowel variant of -ella.

Ancestry of “koostelma”, step by step

StepLanguageWordMeaning
1Finnish-lmäFront vowel variant of -lma
2Finnish-elläFront vowel variant of -ella
Every word from Finnish -ellä →Every word from Finnish -lmä →