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
short-lived, ephemeral
Ancestry of “oesfyr”, step by step
oesfyr traces back through two separate lines of ancestry.