the.com/durability
The unglamorous virtue of still working when everything younger has quit.
means The capacity of something to withstand wear, stress, and time without breaking down or failing.
from From Latin durare, to harden or endure, rooted in durus, hard — the same stubborn stone behind endure and obdurate.
Test labsEngineers torture products specifically to predict their lifespan.
Bathtub curveThings fail early or late, rarely in between.
Roman concreteSelf-heals, outlasting modern mixes by millennia.