Fiacre (noun) (historical)
A small four-wheeled carriage for public hire.
Late 17th century: from French, named after the Hôtel de St Fiacre in Paris, where such vehicles were first hired out.
“We took a fiacre down to the Seine where he proposed!”
Pompous or extravagant in language, style, or manner, especially in a way that is intended to impress.
Late 16th century: from Latin grandiloquus, literally ‘grand-speaking’, from grandis ‘grand’ + loqui ‘speak’. The ending was altered in English by association with eloquent.