Blackguard

a low, contemptible person; scoundrel.
Obsolete.

a group of menial workers in the kitchen of a large household.
the servants of an army.
camp followers.

to revile in scurrilous language.
Historical Examples

The Cloister and the Hearth Charles Reade
Four Young Explorers Oliver Optic
Twos and Threes G. B. Stern
Carmen Prosper Merimee
The Climbers Clyde Fitch
Virgin Soil Ivan S. Turgenev
The Quality of Mercy W. D. Howells
The New Tenant E. Phillips Oppenheim
The Diary of a Saint Arlo Bates
The Hero William Somerset Maugham

noun

an unprincipled contemptible person; scoundrel
(as modifier): blackguard language

verb
(transitive) to ridicule or denounce with abusive language
(intransitive) to behave like a blackguard
n.

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