Etymology Explorer › IcelandicWhere does “þráðsef” come from? þráðsef (Icelandic) comes from Icelandic þráður, from Old Norse þráðr, from Proto-Germanic þrēduz, from Proto-Indo-European treh₁-tu-, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.
þráðsef (Icelandic): thread rush (Juncus filiformis)
Definitions thread rush (Juncus filiformis) Ancestry of “þráðsef”, step by step þráðsef traces back through two separate lines of ancestry.
via Icelandic þráður Step Language Word Meaning 1 Icelandic þráður string, strand, thread; fibre; thread 2 Old Norse þráðr thread; past participle of þreyja; past... 3 Proto-Germanic þrēduz thread, twisted fibre 4 Proto-Indo-European treh₁-tu- — 5 Proto-Indo-European terh₁- to rub, turn; to drill, pierce
via Icelandic sef Step Language Word Meaning 1 Icelandic sef rush; first-person singular present indicative of... 2 Old Norse sef sedge, rush 3 Proto-Germanic sipōną to drop, fall, drip, trickle 4 Proto-Indo-European seyb- to pour, leak, trickle; to pour out, trickle,...