bấy giờ (Vietnamese) comes from Vietnamese bày, from Proto-Vietic pər, from Persian پر, from Middle Persian purr, from Proto-Iranian pr̥Hnáh, from Proto-Indo-Iranian pr̥Hnás, from Proto-Indo-European pl̥h₁nós, from Proto-Indo-European pleh₁- — to fill.
bấy giờ (Vietnamese): then
Definitions
then
Ancestry of “bấy giờ”, step by step
bấy giờ traces back through two separate lines of ancestry.