• WordNet 3.6
    • v quieten cause to be quiet or not talk "Please silence the children in the church!"
    • v quieten make calm or still "quiet the dragons of worry and fear"
    • v quieten become quiet or quieter "The audience fell silent when the speaker entered"
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Century Dictionary and Cyclopedia
    • quieten To become quiet or still.
    • quieten To make quiet; calm; pacify.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Quieten to make quiet, calm
    • ***


Chambers's Twentieth Century Dictionary
L. quietusquiscĕre, to rest.


In literature:

She gave me an apple to quieten me.
"Jewish Children" by Sholem Naumovich Rabinovich
The matter quietened down, but the Commandant shortly afterwards retired from the service of the State.
"Reminiscences of Queensland" by William Henry Corfield
Lucy put her hand on his arm to quieten him.
"The Explorer" by W. Somerset Maugham
Therefore have I quietened him for the nonce.
"Robin Hood" by Paul Creswick
Her agitation quietened him.
"The Rainbow" by D. H. (David Herbert) Lawrence
She leant against the table, and after a while her sobs quietened.
"The Hound From The North" by Ridgwell Cullum
They war playing up queerly, but I think I've quietened 'em.
"Shirley" by Charlotte Brontë
His sobs were quietening.
"Under False Pretences" by Adeline Sergeant
After Granny's death, she seemed to quieten.
"Ditte: Girl Alive!" by Martin Andersen Nexo
Mishcha did all she could to soothe and quieten him.
"The Three Mulla-mulgars" by Walter De La Mare

In poetry:

They cannot quieten that boy's ghost,
He'll have no truck with no "Last Post,"
They mark him "Killed," but you may swear
He's with us, be it foul or fair.
"Killed" by Thomas William Hodgson Crosland

In news:

Democracy Iraq quietened down on the last day of campaigning for today's election, although a candidate was assassinated and four US soldiers died.