longevity
n. uncountablen. the ability to live for a long time or stay useful for many years. It describes things that last much longer than average.
n. the property of long life or great duration of existence. Often applied to biological lifespan or the durability of functional objects and systems.
Good diet and exercise are keys to longevity.
The brand is famous for the longevity of its leather boots, which often last for decades.
While the startup's initial growth was explosive, investors began to question the longevity of its business model in such a volatile and saturated market.
Early 17th century, learned borrowing from Latin longaevitās, from longaevus (“ancient, aged”) + -itās. The first part is related to English long and this association led to the alternative pronunciation with /ŋ/.
Uncountable in its abstract sense; frequently appears in the phrase 'longevity of'.