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quiescent

/ˈkwaɪ.əsənt/

inactive, still, or temporarily at rest

From Latin quies (rest).

adjective
quies
Latin
Verified
quiēs (quies)
“rest, quiet”; the noun behind the verb

from Latin quiescentem (nominative quiescens ), present participle of quiescere , inchoative verb formed

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Latin
AI-inferred
quiēscere
“to become quiet or rest,” an inchoative verb
Latin
Verified
quiēscēns, quiēscēntem
present participle meaning “resting” or “being quiet”

from Latin quiescentem (nominative quiescens ), present participle of quiescere , inchoative verb formed

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English, c. 1600
Verified
quiescent
first used of a letter that was written but not sounded

from Latin quiescentem (nominative quiescens ), present participle of quiescere , inchoative verb formed

Modern English
quiescent

Picture a sixteenth-century reader confronting a written letter that stubbornly refuses to make a sound: English grammarians called it “quiescent,” borrowing Latin’s word for rest. The source was Latin *quiēs*, “quiet” or “repose,” which grew into *quiēscere*, “to become quiet,” and then into *quiēscēns*, “resting.” By the 1640s, the word had escaped the grammar book and begun describing anything temporarily inactive—from a resting mechanism to a dormant process. Its close relative *acquiesce* still preserves the same quiet atmosphere: to acquiesce is, in effect, to settle into agreement rather than make a fight of it. Remember the silent letter: *quiescent* is a word about things that are present, but holding their breath.

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