Where does “isflak” come from?

isflak (Swedish) comes from Swedish flak, from German Flach, from Middle High German vlach, from Old High German flah, from Proto-West Germanic *flak, from Proto-Germanic flakaz, from Proto-Indo-European pl̥keh — flat surface.

isflak (Swedish): an ice floe; a small piece of flat ice floating...

Definitions

  1. an ice floe; a small piece of flat ice floating...

Ancestry of “isflak”, step by step

isflak traces back through two separate lines of ancestry.

via Swedish flak

StepLanguageWordMeaning
1Swedishflaka larger, relatively flat piece, especially an ice floe; a floe, etc
2GermanFlachshallow wide and not deep
3Middle High Germanvlach—
4Old High Germanflahflat, smooth
5Proto-West Germanic*flak—
6Proto-Germanicflakazflat
7Proto-Indo-Europeanpl̥kehflat surface

via Swedish is

StepLanguageWordMeaning
1SwedishisIce; frozen water; Ice; a sheet of ice lying on a...
2Old Swedishis—
3Old Norseíssice
4Proto-Germanicīsąice
5Proto-Indo-Europeanh₁eyH-ice, frost
Every word from Proto-Indo-European pl̥keh →Every word from Proto-Germanic flakaz →Every word from Proto-West Germanic *flak →