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means The state of not achieving a desired goal, or a person, thing, or effort that falls short of what was needed or expected.

from From Anglo-Norman 'failer' and Old French 'faillir,' to be lacking or to come up short, rooted in Latin 'fallere,' to deceive or disappoint. The earlier English form was actually 'failer' (as in a default or failing); the spelling 'failure' settled in later, likely by analogy with other '-ure' words like 'pleasure' and 'censure.' That same Latin 'fallere' is the family ancestor of 'fault,' 'false,' and 'fallacy' — a whole lineage built on things not holding up.

edison's count
He logged thousands of non-working bulb attempts
penicillin
Born from a moldy, neglected, ruined petri dish
post-it
A glue that failed to stick became iconic
survivor bias
We only study winners, ignoring the buried
for instance

lehman brothers collapse — filed for bankruptcy on september 15, 2008, triggering the global financial crisis with $619 billion in assets

titanic sinking — struck iceberg and sank on april 15, 1912, in the north atlantic, killing 1,500+ passengers on its maiden voyage

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