Where does “kirjeensuljin” come from?

kirjeensuljin (Finnish) comes from Finnish suljin, from Finnish -in, from Proto-Finno-Ugric *-in, from Proto-Uralic -ma.

Ancestry of “kirjeensuljin”, step by step

kirjeensuljin traces back through two separate lines of ancestry.

via Finnish suljin

StepLanguageWordMeaning
1Finnishsuljinshutter; First-person singular indicative past...
2Finnish-inSuffix variant for the illative singular, see...
3Proto-Finno-Ugric*-in—
4Proto-Uralic-ma—

via Finnish kirje

StepLanguageWordMeaning
1Finnishkirjeletter
2Finnishkirjabook; quire
3Proto-Finnickirjadecoration, carving, pattern
Every word from Proto-Uralic -ma →Every word from Finnish -in →Every word from Finnish suljin →