YES!!!!!! Henoch, you evil ball of fun, you have the conn. Your guess is impressive too because I realized I misinterpreted her death scene and I was going to alter a couple of my previous clues if no one got it today. Well done.
Oh, I should explain the clues...
Clue 1:It's obvious by looking at this object what it's purpose is. It's a dagger. It stabs and cuts things.
Clue #2: It's versatile. We see it put to a number of uses. Nona harvests the herb she intoxicates Tyree with with it, it is used to cut her palm during the healing of Kirk ceremony, she pulls her dagger to defend herself against the Village People.
Clue #3: This object seems important to its owner. It is always prominent when its owner is on camera even when not being used. As above, she puts it to a number of important uses. Also, even when she's not using it, it's so big and prominent on her belt. Your eye is just drawn to it. And she tends to walk and stand with her hand on its handle. It never seems to be far from her mind. A symbol of her status?
Clue 4: We see this item used to do harm. We also see this item used to help heal. I messed this clue up a bit and was going to change it if Henoch hadn't got it. I thought Nona was killed with her own dagger, but in rewatching the scene, I now think the Village Person killed her with his own knife. And again, her dagger is used in the ceremony to heal Kirk.
Clue 5: As important as this item was to its owner, ultimately it was used to bring about its owner's undoing. Again, I thought she was killed by her own knife. A better clue would have been "it failed to prevent her undoing" as she pulled it to defend herself, but it didn't help.
Clue 6: The item's owner is a woman. Yep, it's Nona's.