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tr.v. pes·tered, pes·ter·ing, pes·ters
To annoy persistently, as with repeated demands or questions. See Synonyms at harass.

[Probably short for French empestrer, to constrain, embarrass (probably also influenced by pest), from Old French, from Vulgar Latin *impāstōriāre : Latin in-, in; see in-2 + Vulgar Latin *pāstōria, a hobble, from Latin, feminine of pāstōrius, of a herdsman (from pāstor, herdsman; see pā- in Indo-European roots).]

pes′ter·er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pesterer - a persistently annoying personpesterer - a persistently annoying person  
nudnick, nudnik - (Yiddish) someone who is a boring pest
persecutor, tormenter, tormentor - someone who torments
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
"If it is being pestered, as had happened before, it is likely to turn on its pesterer," said the judge.
Think of the people who come away dissatisfied with the consultation but shy away from returning for another for fear of looking like a fool or a pesterer.
It may be that Williams was just a scapegoat, a habitual pesterer unlucky enough to fall into the hands of the authorities to personify the Monster in a trial that could be likened to a ceremony of exorcism.