Pronunciation: [boh nah-pay-TEE]
A French phrase with any of various meanings related to having a good (bon) appetite (appétit) such as "have a good meal," (I wish you a) "hearty appetite" or "enjoy your meal." Bon appétit has long been Julia Child's television sign-off.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.