What is the meaning of Plague?

The bubonic plague, the pestilent disease caused by the virulent bacterium Yersinia pestis.

An epidemic or pandemic caused by any pestilence, but specifically by the above disease.

A widespread affliction, calamity, or destructive influx, especially when seen as divine retribution.

A grave nuisance, whatever greatly irritates.

A group of common grackles.

To harass, pester or annoy someone persistently or incessantly.

To afflict with a disease or other calamity.

inflection of plagar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

Source: wiktionary.org