⟨x⟩ Vs. ⟨ch⟩: the letter ⟨x⟩ derives from Latin ⟨x⟩ or ⟨s⟩, or from Arabic ⟨dh⟩ and usually corresponds to Spanish ⟨j⟩. Mounting diphthongs (which may even be pronounced as hiatuses) made up of stressed i or stressed u are accented so they won't be pronounced as falling diphthongs. Exceptions https://www.buyfavoritesdisposables.com/