Where does “iēr” come from?

iēr (Old Frisian) comes from Proto-West Germanic jār, from Proto-Germanic jērą, from Proto-Indo-European yeh₁r- — year.

Ancestry of “iēr”, step by step

StepLanguageWordMeaning
1Proto-West Germanicjāryear
2Proto-Germanicjērąyear; name of the J-rune
3Proto-Indo-Europeanyeh₁r-year

Words derived from “iēr”

Every word from Proto-Indo-European yeh₁r- →Every word from Proto-Germanic jērą →Every word from Proto-West Germanic jār →