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pest

Latin

Variants

pestpestis

Related Roots

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About This Root

From Latin pestis (plague, deadly disease, curse). Produces pestilence (a devastating epidemic), pestilent/pestilential (plague-like), pesticide (pest-killer), and pester (originally to infest, now to annoy persistently). The meaning softened from deadly disease to mere nuisance over the centuries.

Associated Words

pester

To annoy or bother someone persistently

IELTSTOEFLGRE

pesticide

A chemical used to kill harmful insects or pests

IELTSTOEFLGRE

pestilence

A deadly contagious epidemic disease; a harmful influence

TOEFLC2

pestilent

Deadly or highly harmful; dangerous to life or morals

GREC2

pestilential

Relating to plague; morally harmful or highly annoying

TOEFLC2