Pester is defined as to pick on or irritate.(verb)
An example of pester is a boy pulling his little sister's hair over and over again.
See pester in Webster's New World College Dictionary
Origin: < obs. impester < OFr empestrer, orig., to hobble a horse at pasture, entangle < VL *impastoriare < L in-, in- + VL *pastoria, shackle (see pastern): meaning infl. by pest
See pester in American Heritage Dictionary 4
transitive verb pes·tered, pes·ter·ing, pes·ters
Origin: Probably short for French empestrer, to constrain, embarrass (probably also influenced by pest)
Origin: , from Old French
Origin: , from Vulgar Latin *impāstōriāre
Origin: : Latin in-, in; see in-2
Origin: + Vulgar Latin *pāstōria, a hobble
Origin: , from Latin
Origin: , feminine of pāstōrius, of a herdsman (from pāstor, herdsman; see pā- in Indo-European roots).
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