Where does “tjarnastör” come from?

tjarnastör (Icelandic) comes from Icelandic tjörn, from Old Norse tjǫrn, from Proto-Germanic ternō, from Proto-Indo-European der- — to split, to separate; to tear, to crack, to...

tjarnastör (Icelandic): bottle sedge (Carex rostrata)

Definitions

  1. bottle sedge (Carex rostrata)

Ancestry of “tjarnastör”, step by step

tjarnastör traces back through two separate lines of ancestry.

via Icelandic tjörn

StepLanguageWordMeaning
1Icelandictjörna pond
2Old Norsetjǫrnsmall lake, pond, tarn; pool
3Proto-Germanicternōa mountain lake without tributaries; watering...
4Proto-Indo-Europeander-to split, to separate; to tear, to crack, to...

via Proto-Indo-European stōr-

StepLanguageWordMeaning
1Proto-Indo-Europeanstōr-big, bulky
Every word from Proto-Indo-European der-Every word from Proto-Germanic ternōEvery word from Old Norse tjǫrn