Where does “tanko” come from?

tanko (Finnish) comes from Old Swedish stang, from Old Norse stǫng, from Latin stancus, from Latin stānticus, from Latin stāns, from Latin stō, from Proto-Italic staēō, from Proto-Indo-European sth₂éh₁yeti.

tanko (Finnish): rod, bar, pole, staff; barre; billet