Wolf – “keshiras tefillin…I would say “hanachas tefillin.” But what do I know?”
The posuk says ‘u’k’shartem’ (you shall bind them) , not “v’hinachtem’ (you shall place them) – indeed, we routinely call it “putting on tefilin” = “hanachas tefilin”, rather than the way the Torah calls it: “keshiras tefilin”..