fiacre
Concise Oxford English Dictionary © 2008 Oxford University Press:
fiacre /fɪˈɑːkrə, -kə/
▶noun historical a small four-wheeled carriage for public hire.
– origin C17: from Fr., named after the Hôtel de St Fiacre in Paris, where such vehicles were first hired out.
'fiacre' also found in these Oxford entries:

