Where does “kaarisulkumerkki” come from?

kaarisulkumerkki (Finnish) comes from Finnish merkki, from Old Swedish mærki, from Old Norse merki, from Proto-Germanic markō, from Proto-Indo-European morǵ- — edge, boundary, border; frontier, border.

Ancestry of “kaarisulkumerkki”, step by step

kaarisulkumerkki traces back through two separate lines of ancestry.

via Finnish merkki

StepLanguageWordMeaning
1Finnishmerkkimark, sign; character; symbol
2Old Swedishmærki
3Old Norsemerkiboundary
4Proto-Germanicmarkōborder, boundary; region, area
5Proto-Indo-Europeanmorǵ-edge, boundary, border; frontier, border

via Finnish kaarisulku

StepLanguageWordMeaning
1FinnishkaarisulkuA round bracket, parenthesis
2Finnishsulkubracket; blockade; lock
3Finnishsulkeato close, shut; to turn off, to switch off
4Proto-Finnicsülkedäkto spit
5Proto-Finno-Permicśulke-
Every word from Proto-Indo-European morǵ-Every word from Proto-Germanic markōEvery word from Old Norse merki