pest
LatinVariants
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