What is the meaning of descent?

noun

• A movement downward.
• Properties attributable to your ancestry.
  • usage: "he comes from good origins"
  • synonyms: origin, extraction
• The act of changing your location in a downward direction.
• The kinship relation between an individual and the individual's progenitors.
  • synonyms: line of descent, lineage, filiation
• A downward slope or bend.
  • synonyms: declivity, fall, decline, declination, declension, downslope
• The descendants of one individual.
  • usage: "his entire lineage has been warriors"
  • synonyms: lineage, line, line of descent, bloodline, blood line, blood, pedigree, ancestry, origin, parentage, stemma, stock