Primigenial

prī-mi-jē′ni-al, adj. first-born or made: primary: constituent—also Primogē′nial .— adjs. Primig′enous , Primigē′nious , first formed; Primogen′ital ( obs. ), Primogen′itary , Primogen′itive , of or belonging to primogeniture.— ns. Primogen′it or , the first begetter or father: a forefather; Primogen′iture , state of being born first of the same parents: ( law ) the right of the eldest son to inherit his father's estates; Primogen′it ure ship . [Fr.,—L. primo-genitus , first-born— primus , first, gignĕre , genitum , to beget.]