grand mal /mal/ noun

A violently convulsive form of epilepsy (see also petit mal under petit)

Grand Marnier® /mär-nyā/ noun

An orange-flavoured liqueur, often with a cognac base

grand merci /mer-sē/ interjection

Many thanks

grand monde /mɔ̃d/ noun

High society

grand prix /prē/ noun (pl grands prix)

1. Literally, chief prize
2. (with caps) any of several international motor races
3. Any competition of similar importance in other sports (orig Grand Prix de Paris, a famous horse race)

grand seigneur /sen-yœr/ noun

A dignified aristocratic gentleman or noble (now usu ironic)

le Grand Siècle /syekl’/

The great century, ie the Classical age of French literature during the reign of Louis XIV

mal /mal/ (French)

Pain, sickness

mal de mer /də mer/ noun

Seasickness

mal du pays /dü pā-ē/ noun

Homesickness, nostalgia

mal du siècle /dü syekl’/ noun

Depression about the state of the world (used by Sainte-Beuve (1833) and current in the 20c)

grand mal see under grand²

petit mal see under petit