Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

1640s, from French à la mode (15c.), literally "in the fashion" (see mode (n.2)). In 17c., sometimes nativized as all-a-mode. Cookery sense of a dessert served with ice cream is 1903, American English.