来自古法语pied de gru,天鹅的脚爪，来自pied,脚，词源同foot,de,的，gru,天鹅，词源同crane.后拼写通俗化，用于指家谱，因家谱图如同天鹅的脚爪而得名，引申词义门第，世系等。
英文词源
pedigree
pedigree: [15] Etymologically, pedigree means ‘crane’s-foot’. It comes from Anglo-Norman *pe de gru, pe meaning ‘foot’ (from Latin pēs) and gru ‘crane’ (from Latin grūs). The notion behind the metaphor is that a bird’s foot, with its three splayed-out toes, resembles the branching lines drawn to illustrate a family tree. => crane, geranium
pedigree (n.)
early 15c., "genealogical table or chart," from Anglo-French pe de gru, a variant of Old French pied de gru "foot of a crane," from Latin pedem accusative of pes "foot," from PIE root *ped- (1) "a foot" (see foot (n.)) + gruem (nominative grus) "crane," cognate with Greek geranos, Old English cran; see crane (n.)).
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 influenced in Middle English by association with degree. Meaning "ancestral line" is mid-15c.; of animals, c. 1600. Related: Pedigreed.
中文解释
1、pedi- "foot" + gruem (nominative grus) "crane", cognate with Greek geranos, Old English cran, see crane. => pedigree.2、字面含义为：foot of a crane. => genealogical table or chart.3、因为表示家谱的图表符号很像鸟的脚印。4、Form influenced in Middle English by association with degree. => 词尾双e的风格来源。
实用例句
1. Hammer's business pedigree almost gua-ranteed him the acquaintance of U.S. presidents.
哈默的商业背景几乎保证了他能够结识美国总统。
来自柯林斯例句
2. She had an impeccable aristocratic pedigree.
她有纯正的贵族血统。
来自柯林斯例句
3. The champions really showed their pedigree today.
今天的冠军确实展现了其纯种系谱.
来自《简明英汉词典》
4. Like any other commodity, pedigree dogs are covered by the Sale of Goods Act.
像其他商品一样，纯种狗的买卖同样受《货物买卖法》的约束。
来自柯林斯例句
5. A pedigree pup should have been inoculated against serious diseases before it's sold.