@JPRidgeway If you just want some early lexicographic work saying that 立 is, or at least can be リツ: this is rather easy. See e.g. the attached pic from the early Muromachi print of Hokekyō onkun 法華経音訓 @ https://t.co/qJzJDPuNt0 Could of course write either /ritu/ or /rit/, but still. https://t.co/Wp6AHWGj1f