longevity
/lɒnˈdʒevətɪ/noun
mass noun
1- long life长寿, 长命：
the greater longevity of women compared with men.
女性比男性寿命更长。
1.1
- long existence or service长期存在; 长期供职：
her longevity in office now appeared as a handicap to the party.
现在看来, 她为时过长的任职成了该党的一个不利因素。
词源
early 17th cent.: from late Latin longaevitas, from Latin longus 'long' + aevum 'age'.