Mortier rhymes with:
courtier, fortier, portier, sportier, cartier, chartier, courtier, fortier, heartier, portier, sportier
Mortier sounds like:
marauder, marder, marter, martire, martyr, martyre, meridor, meritor, meriweather, meriwether, merriweather, merriwether, moratoria, mortar, mortara, morter, mortuary, muratore, murder, murderer