Pest
Pest , noun
[Latin pestis: compare French peste.]
1.
A fatal epidemic disease; a pestilence; specif., the plague.
England's sufferings by that scourge, the pest.
2.
Anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance.
A pest and public enemy.