quietern.

a1542 T. Wyatt Coll. Poems (1969) clxxxvii. 4 The body ese and trobler off my hart, Quieter of mynd.

1567 T. Palfreyman Baldwin's Treat. Morall Philos. (new ed.) ix. ii. f. 195 It is also a satisfier or ioyeful quieter of ye mind.

1718 E. Strother Euodia 115 If..we suppose the Damage, by their Expulsion, would be superior to the Advantages received by Quieters,..it would be safest to postpone to Expulsion, and only quiet the Irritation.

1750 tr. C. N. Le Cat Physical Ess. Senses 48 The more you move the Quieter, either towards the Neck, or towards the Bridge, the sharper is the Tone.

1827 R. Southey Select. from Lett. (1856) IV. 261 Half an hour of some goodly grave old book..as a quieter for the night.

1881 W. H. Day On Dis. Children 33 Among children the adminstration of opiates, under the names of quieters and soothers, is nearly as destructive to health as the excessive use of alcoholic stimulation among adults.

1883 R. M. Ballantyne Thorogood Family vi. 75 Truly there are few quieters of the savage human breast equal to food!

1901 Murray's Mag. 24 875/2 The ‘quieters’ and headache powders which some druggists do not scruple to sell, and which some men and women are foolish enough to buy on their own prescription.

1936 Reno (Nevada) Evening Gaz. 30 Sept. 4/2 Donaldson put on the walls, the tables and the troughs of the packing plants the colors that he considers to be nerve quieters.

2003 Miami New Times (Nexis) 10 July Included were what they covertly referred to as ‘quieters’, silencers that can be attached to the guns before an assassination.