Etymology
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suppress (v.)

late 14c. (implied in suppressing) "be burdensome;" 1520s as "put down by force or authority," from Latin suppressus, past participle of supprimere "press down, stop, hold back, check, stifle," from assimilated form of sub "below, under" (see sub-) + premere "to press, hold fast, cover, crowd, compress" (from PIE root *per- (4) "to strike"). Sense of "prevent or prohibit the circulation of" is from 1550s of publications; medical use from 1620s. Related: Suppressed; suppressing.

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Definitions of suppress

suppress (v.)
bring under control by force or authority;
suppress a nascent uprising
Synonyms: stamp down / subdue / conquer
suppress (v.)
come down on or keep down by unjust use of one's authority;
Synonyms: oppress / crush
suppress (v.)
consciously restrain from showing; of emotions, desires, impulses, or behavior;
suppress a smile
Synonyms: inhibit / bottle up
suppress (v.)
put out of one's consciousness;
Synonyms: repress
suppress (v.)
lessen to the point of stopping;
this drug can suppress the hemorrhage
suppress a yawn
From wordnet.princeton.edu