Sentence:  Whatever keeps me from my beginnings, whatever chops me off and isolates me from my whole life is to the harm of my spirit; it <WSD>unmothers</WSD> me; it dispossesses me of my heritage and of my truth, and how can I pass on what is mine if I have not received what was others' and passed on to me? he thought. 
Meaning of the word marked with <WSD> tags:  To cause to cease having a mother or to fail to mother properly.