Where does “tykkylumi” come from?

tykkylumi (Finnish) comes from Finnish tykky, from Old Norse þykkr, from Proto-Germanic þekuz, from Proto-Indo-European tégus, from Proto-Indo-European teg-.

Ancestry of “tykkylumi”, step by step

tykkylumi traces back through two separate lines of ancestry.

via Finnish tykky

StepLanguageWordMeaning
1Finnishtykkysnow and rime that accumulates on tree branches and any solid structures in certain climatic conditions
2Old Norseþykkrthick
3Proto-Germanicþekuzthick
4Proto-Indo-Europeantégusthick
5Proto-Indo-Europeanteg-

via Finnish Lumi

StepLanguageWordMeaning
1FinnishLumisnow frozen, crystalline state of water that falls as precipitation; sometimes also similar frozen forms of other substances
2Finnishlumisnow
3Proto-Finniclumisnow
4Proto-Uraliclomesnow
Every word from Proto-Indo-European teg-Every word from Proto-Indo-European tégusEvery word from Proto-Germanic þekuz