- Pester is defined as to pick on or irritate.
An example of pester is a boy pulling his little sister's hair over and over again.
- to annoy constantly or repeatedly with petty irritations; bother; vex
- Obsolete to overcrowd; cram
Origin of pester; from obsolete impester ; from Old French empestrer, origin, originally , to hobble a horse at pasture, entangle ; from Vulgar Latin an unverified form impastoriare ; from Classical Latin in-, in- + Vulgar Latin an unverified form pastoria, shackle (see pastern): meaning influenced, influence by pest
transitive verbpes·tered, pes·ter·ing, pes·ters
Origin of pesterProbably 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).
(third-person singular simple present pesters, present participle pestering, simple past and past participle pestered)