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idempotent

/aɪ.dəmˈpənt/

unchanged by repeated application

From Latin idem (the same) + Latin potent (powerful).

adjective
noun
idem
Latin
Verified
idem
meaning 'the same'; used in writing to avoid repetition

from Latin idem "the same, identical with" (see idem ) + potentem "powerful" (see potent ).

English mathematical coinage
Verified
idempotent
built from idem + potent to mean 'having the same power'

from Latin idem "the same, identical with" (see idem ) + potentem "powerful" (see potent ).

potent
Latin
AI-inferred
potentem / potens
meaning 'powerful, able'
Latin
Verified
potentem + idem
combined in the coined form idempotent

from Latin idem "the same, identical with" (see idem ) + potentem "powerful" (see potent ).

Combined
idempotent
coined in 1870 by Benjamin Peirce for an algebraic element that stays the same after self-application
Mathematics
Verified
idempotent
describes an operation or element that does not change on repeated application

from Latin idem "the same, identical with" (see idem ) + potentem "powerful" (see potent ).

Computer science
Verified
idempotent
describes actions like repeated network requests that produce the same final result

from Latin idem "the same, identical with" (see idem ) + potentem "powerful" (see potent ).

Modern English
idempotent

This is one of those wonderfully nerdy words that sounds as if it ought to belong in a wizard’s spellbook, but it was minted in a math paper in 1870 by Benjamin Peirce. The first half is Latin idem, “the same,” the sort of word Romans scribbled when they didn’t want to repeat themselves. The second half comes from potent, the old power word hiding in potent, potency, omnipotent, and even plenipotentiary, which is basically “fully empowered ambassador.” Put them together and you get something with the same power after every repeat — a neat little linguistic machine that says, “Do it again if you want; I’m not changing.” Tomorrow, when someone talks about an idempotent API, you can hear the ghost of Latin saying, “Same result, no drama.”

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