Where does “vaynna” come from?

vaynna (Old Portuguese) comes from Latin vagina, from Proto-Italic wāgīnā, from Proto-Indo-European wāg- — to be bent.

Ancestry of “vaynna”, step by step

StepLanguageWordMeaning
1Latinvaginasheath, scabbard; covering, sheath, holder of any...
2Proto-Italicwāgīnāsheath, scabbard
3Proto-Indo-Europeanwāg-to be bent
Every word from Proto-Indo-European wāg- →Every word from Proto-Italic wāgīnā →Every word from Latin vagina →