surname taken as the type of excessive hype and promotion, by 1850s, from circus owner P.T. Barnum (1810-1891), described in OED as "a pushing American show-proprietor." The surname is from the place-name Barnham.
Barnard
Barn-burner
Barney
barney
barnstorm
Barnum
barnyard
barometer
barometric
baron
baroness
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