Sentence:  Some older adherents of Kaharingan reportedly <WSD>deconvert</WSD> from the traditional faith to Christianity for fear that their offspring will not conduct proper mortuary rituals on their behalf when it becomes necessary. 
Meaning of the word marked with <WSD> tags:  To undergo a deconversion from a religion, faith or belief or (transitive) to induce (someone) to reject a particular religion, faith, or belief.