Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class I. Words Expressing Abstract Relations
Section VIII. Causation
3. Power in Operation

167. Posterity.

   NOUN:POSTERITY, progeny, breed, issue, offspring, brood, litter, seed, farrow, spawn, spat; family, children, grandchildren, heirs; great-grandchildren.
  CHILD, son, daughter, bairn, baby, kid [colloq.], papoose [Am. Ind.], imp, brat, moppet [archaic], lambkin, cub, cherub, nestling, tot, innocent, urchin, chit [colloq.]; infant [See Infant]; butcha or bacha [Hind.]; bantling, scion; acrospire, plumule, shoot, sprout, olive-branch, sprit, branch; offshoot, offset; ramification; descendant; heir, heiress; heir-apparent, heir-presumptive; chip of the old block; heredity; rising generation.
  LINEAGE, straight descent, sonship, line, filiation, primogeniture.
   ADJECTIVE:FILIAL; diphyletic.
   QUOTATION:The child is father of the man.—Wordsworth