She does indeed remember this word.

"They made your bag?"

...Honestly, they're so small and stubby, it does sort of explain the need for bottomless bags. She can't imagine they can carry much.

"But what are they, exactly? Are they a sort of spirit of the forest? We have stories about such things in my world, though I don't know if they actually exist. ...Actually, there is a Corsair who is a sort of tree spirit himself."