On the other hand, you established that phylactery has no bearing on the Jewish culture. It's however a part of Paizo's culture as "the name of the item liches use as soul cage". As a legitimate arbiter of what is acceptable to Paizo, Paizo themselves can certainly decide to drop a word. Irrespective of any real world use of the word. They could change baelnorn to nornbael, as well (assuming baelnorn is a fully made up word), or decide to drop the letter e. Which woul mak thir products much mor difficult to rad.