Nouns

(n)descent, falla movement downward“the rise and fall of the tides”
(n)origin, descent, extractionproperties attributable to your ancestry“he comes from good origins”
(n)descentthe act of changing your location in a downward direction
(n)descent, line of descent, lineage, filiationthe kinship relation between an individual and the individual's progenitors
(n)lineage, line, line of descent, descent, bloodline, blood line, blood, pedigree, ancestry, origin, parentage, stemma, stockthe hereditary derivation of an individual“his entire lineage has been warriors”