/rohsh' khoh"desh/ ; Ashk. Heb. /rddohsh khoh"desh/ ; Seph. Heb. /rddawsh khaw"desh/ , Judaism.
the beginning of a new month in the Jewish calendar, celebrated in a specified manner during the morning service in the synagogue.
Also, Rosh Chodesh .
[ rosh hodhesh lit., beginning of the new moon ]