What is the solution to the riddle of Yorn?

I've tried every item, tried talking to everyone, even everyone in Meriloft, but I'm getting no closer to solving the riddle. None of the items I have seem to be the answer, am I missing something?

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Solution 1:

It's a fruit! Which you can get

from the tree in Meriloft: enter image description here
To get a fruit, go to the left side of the tree and grab the low hanging branch. A fruit will fall off. Stand near the trunk to drop to the tree's roots, then move to the left to find the fruit waiting in a bird's nest.