-nsē, -si noun
Etymology: Latin praepotentia, from praepotent-, praepotens + -ia -y
1. : the quality or state of being prepotent : predominance
not a policy of self-defence but of prepotency and imperialism — Times Literary Supplement
2. : the ability of one individual or strain to transmit its characters to offspring to a greater extent than the other parent individual or strain because of an accumulation of homozygous dominant genes