Where does “ʾplwh-tn'” come from?

ʾplwh-tn' (Middle Persian) comes from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

Ancestry of “ʾplwh-tn'”, step by step

ʾplwh-tn' traces back through two separate lines of ancestry.

via Proto-Indo-European upó

StepLanguageWordMeaning
1Proto-Indo-Europeanupóunder, below
2Proto-Indo-Europeanh₃ewp-—

via Proto-Indo-Iranian Hapá

StepLanguageWordMeaning
1Proto-Indo-IranianHapáoff, away, from
2Proto-Indo-Europeanh₂epofrom, off, back; off, away; off, from
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →