"fireman's scaling ladder," French, literally "fireman," from pompe "pump" (see pump (n.)).
Online Etymology Dictionary, © 2010 Douglas Harper
Examples from the Web for pompier
It does not amuse the pompier,” said Dumas, “but I know what it wants.Dumas' Paris
I have a horse entered for the race to-morrow, Pompier de Nanterre.
When the act was finished, Dumas went in search of the pompier, who did not know him.An Englishman in Paris
Albert D. (Albert Dresden) Vandam
On this occasion, M. Wilkie—being fortunate enough to arrive the first—immediately repaired to Pompier de Nanterre's stall.
He would willingly have given his third share in Pompier de Nanterre to have made his escape.