To Deconvert

1. (intransitive) To undergo a deconversion from a religion, faith or belief or (transitive) to induce (someone) to reject a particular religion, faith, or belief.
2. (intransitive) To revert or (transitive) to restore.
3. (transitive) To change a building that has been converted to a new use back to its original use; specifically to change a house that has been converted into apartments or flats back to a single-family dwelling