right-hand man
Preserved but no longer current.
Meaning · English
An invaluable, or con- fidential, assistant; originally applied to the cavalryman at the right of the line, whose duties were of great responsibility.
Era: ca. 1898 (Victorian)
Sources & notes
Reproduced from Brewer’s Dictionary of Phrase and Fable (1898 edition, public domain; archive.org, retrieved 2026-07-31; OCR text, minor errors possible). Reflects the scholarship and attitudes of its era.
Common questions
What does “right-hand man” mean?
An invaluable, or con- fidential, assistant; originally applied to the cavalryman at the right of the line, whose duties were of great responsibility.
Is “right-hand man” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.