Where does “ツリー” come from?

ツリー (Japanese) comes from English tree, from Middle English tre — A tree or a plant that resembles one.

ツリー (Japanese): tree

Definitions

Step	Language	Word	Meaning
1	English	tree	A perennial woody plant, not exactly defined, but...
2	Middle English	tre	A tree or a plant that resembles one

ツリー — Etymology, Origin & Word History | Etymology Explorer