1. ancestry   moun [countable/uncountable]   

原句: Middle Eastern populations show multiple sources of ancestry.

意思: the family or the race of people that you come from

字源: Middle English: alteration of Old French ancesserie, from ancestre, from Latin antecessor, from antecedere, from ante ‘before’ + cedere ‘go’. 

例句: He was able to trace his ancestry back over 1 000 years.

1. mistletoe   noun [uncountable]   

原句: But the impulse to give a little more-maybe too much-is more traditional than mistletoe.

意思: a plant with small shiny white  berries  that grows on other trees and is often used as a decoration at Christmas

字源: Old English misteltān, from mistel ‘mistletoe’ (of Germanic origin, related to Dutch mistel and German Mistel) + tān ‘twig’. 

例句: He doesn't believe the tradition of kissing under the mistletoe.