Definition of ancestry noun from the Oxford Advanced Learner's Dictionary

 

ancestry

 noun
noun
BrE BrE//ˈænsestri//
 
; NAmE NAmE//ˈænsestri//
 
[countable, usually singular, uncountable](pl. ancestries) Family background
 
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the family or the race of people that you come from to have Scottish ancestry He was able to trace his ancestry back over 1 000 years. See related entries: Family background Word Origin Middle English: alteration of Old French ancesserie, from ancestre, from Latin antecessor, from antecedere, from ante ‘before’ + cedere ‘go’.Extra examples Humans share a common ancestry with chimpanzees. She shares a common ancestry with the Queen. The company claims an ancestry going back to 1727. The two species have developed from a common ancestry. We can trace our ancestry back to the 16th century. His eyes owed their startling blueness to his Irish ancestry.
See the Oxford Advanced American Dictionary entry: ancestry