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obfuscate

/ˈɒbfəskeɪt/

To make unclear, dark, or confusing

From Latin ob- (in front of) + Latin fusc (dark).

verb
ob-
Latin
Verified
ob-
prefix meaning 'before, toward, against'

from Latin ob- + fuscō (“to darken”). Doublet of dusken (“to darken, make obscure”). === Pronunciation === (Received...

Late Latin
Verified
obfuscō / obfuscātus
the prefix joins a darkening verb-form

from Latin obfuscatus , past participle of obfuscare "to darken" (usually in a figurative sense)

+1 more source
Old French
Verified
offusquer
borrowed as a verb meaning to darken or cloud over

from Old French offusquer, or directly

Middle French
Verified
obfusquer
a later French form feeding English

from Middle French obfusquer, offusquer

fusc
Latin
AI-inferred
fuscus
dark, swarthy, dusky
Late Latin
AI-inferred
fuscō / obfuscō
the verb-forming layer built from the adjective
English
AI-inferred
obfuscate
borrowed as a verb meaning to darken or confuse
Combined
obfuscate
a Latin-built compound that reached English by the 1500s; first attested in the 1480s as a form meaning 'darken' and in the 1530s as the verb
Modern English
AI-inferred
obfuscation
the state or act of making something unclear
Modern English
AI-inferred
obfuscated
past tense and participle
Modern English
obfuscate

This is one of those wonderfully honest words: it means to make something dark, and then it goes right ahead and sounds a little murky itself. The core is Latin fuscus, “dusky,” the same shadowy color-family behind words like subfusc, the old university term for sober dark dress. Add ob-, that slippery Latin prefix that can mean “toward,” “against,” or just intensify the whole business, and you get a verb built like a shutter sliding shut. English was using it by the 1500s; the older French forms offusquer and obfusquer helped usher it in, like a torch carried through a corridor. What makes the word so satisfying is that it still behaves exactly like its origin: when you obfuscate, you don’t merely explain badly — you dim the room until everybody is squinting. It is the linguistic equivalent of fog rolling over a courtroom.

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