Where does “oesfyr” come from?

oesfyr (Welsh) comes from Welsh oes, from Old Welsh ois, from Proto-Brythonic oɨs, from Proto-Celtic aiwestom, from Proto-Indo-European h₂ey- — vital force, life, age, eternity; day, morning.

oesfyr (Welsh): short-lived, ephemeral

Definitions

  1. short-lived, ephemeral

Ancestry of “oesfyr”, step by step

oesfyr traces back through two separate lines of ancestry.

via Welsh oes

StepLanguageWordMeaning
1Welshoesis there; are there; yes; age, period
2Old Welshois
3Proto-Brythonicoɨsage
4Proto-Celticaiwestomage; lifetime; era
5Proto-Indo-Europeanh₂ey-vital force, life, age, eternity; day, morning

via Welsh byr

StepLanguageWordMeaning
1Welshbyrshort; brief, concise
2Old Norsebyrra fair wind
3Proto-Germanicburizmale offspring; son; elevation; hill; favourable...
4Proto-Indo-Europeanbʰēr-shiny, light brown
Every word from Proto-Indo-European h₂ey-