Where does “trettio” come from?

trettio (Swedish) comes from Old Swedish þrætighi, from Proto-Germanic þrīz tigiwiz — thirty.

trettio (Swedish): thirty

Definitions

  1. thirty

Ancestry of “trettio”, step by step

trettio traces back through two separate lines of ancestry.

via Old Swedish þrætighi

StepLanguageWordMeaning
1Old Swedishþrætighithirty
2Proto-Germanicþrīz tigiwizthirty

via Old Norse þrjátigi

StepLanguageWordMeaning
1Old Norseþrjátigithirty

Words derived from “trettio”

Every word from Proto-Germanic þrīz tigiwiz →Every word from Old Swedish þrætighi →