the religious service celebrated by Jews in addition to and immediately after the morning service on the Sabbath and festivals.
Origin of Musaf
mūsāph literally, addition
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Judaism the additional prayers added to the morning service on Sabbaths, festivals, and Rosh Chodesh
Word Origin for Musaf
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012