Webster's Revised Unabridged Dictionary · 1913

Pester

Pester (pes"tẽr) , transitive verb

[Abbrev. from impester, from Old French empaistrier, empestrer, to entangle the feet or legs, to embarrass, French empêtrer; pref. em-, en- (Latin in in) + Late Latin pastorium, pastoria, a fetter by which horses are prevented from wandering in the pastures, from Latin pastorius belonging to a herdsman or shepherd, pastor a herdsman. See In, and Pasture, Pastor.]

1.
To trouble; to disturb; to annoy; to harass with petty vexations.
We are pestered with mice and rats. — Dr. H. More
A multitude of scribblers daily pester the world. — Dryden
2.
To crowd together in an annoying way; to overcrowd; to infest. [Obsolete] — Milton
All rivers and pools... pestered full with fishes. — Holland