a carriage for hire
"After waiting an hour at the station, we finally hailed a hackney to take us back to the city center."
a compact breed of harness horse
"The carriage driver chose a sturdy hackney to pull the heavy cart through the muddy market streets."
An ordinary horse.
"The old carriage driver refused to take us on his hackney because it was too tired for the long journey."
To make uninteresting or trite by frequent use.
"After hearing that same joke a hundred times at every party, it has become completely hackneyed and fails to make anyone laugh anymore."
Offered for hire.
"After the rain stopped, a few hackneys waited by the curb to take passengers back into town."
A London borough of Greater London, England, where once upon a time many horses were pastured.
"The local guide pointed out the historic grazing fields as we walked through Hackney to show us where the carriage horses used to roam freely centuries ago."