Where does “nonne” come from?

nonne (Old English) comes from Old French none, from Latin nonna, from Latin nonnus, from Proto-Indo-European nana-.

Ancestry of “nonne”, step by step

StepLanguageWordMeaning
1Old Frenchnonenoon; the ninth hour of the day, equivalent to...
2Latinnonnanun
3Latinnonnusmonk; tutor; old person
4Proto-Indo-Europeannana-—
Every word from Proto-Indo-European nana- →Every word from Latin nonnus →Every word from Latin nonna →