noun

longevity

lawn-JEV-uh-tee/lɔːnˈdʒevəti/

A long period of continued existence.

The ancient olive tree's gnarled trunk and healthy leaves testify to its longevity.

Very old olive tree with thick gnarled trunk still bearing healthy leaves beside young sapling, enduring long life, no text.

Etymology

longLatinlong

+evLatinlifetime, age

+ityLatinstate or quality

Longus and aevum combine the ideas of length and a lifetime: the underlying adjective meant “of great age.” The abstract noun names long life, extending also to continued existence.

In context

Unmarcheinvesting com0:48

Turtles have an extremely slow metabolism. This energy-efficient way of life is considered one of the main reasons for their remarkable longevity.

🐢 The Secret Behind a Turtle’s 100+ Year Lifespan | Amazing Turtle Facts #Nature #Documentary#Turtle

More examples

The restaurant owes its longevity to loyal customers.
Researchers study how diet affects human longevity.
The longevity of her career reflects her ability to adapt.

Similar words

durability: Emphasizes resistance to wear or damage rather than duration.
permanence: Suggests lasting indefinitely, not merely for a long time.