pedigree Look up pedigree at Dictionary.com
c.1410, "genealogical table or chart," from Anglo-Fr. pe de gru, a variant of O.Fr. pied de gru "foot of a crane," from L. pedem "foot" + gruem (nom. grus) "crane," cognate with Gk. geranos, O.E. cran, see crane). On old manuscripts, "descent" was indicated by a forked sign resembling the branching lines of a genealogical chart; the sign also happened to look like a bird's footprint. Form infl. in M.E. by association with degree. Meaning "ancestral line" is c.1440; of animals, 1608.