JBABowl 71.1:8 :שבתא כסא וריש ירחא‏ :
See the entire entry for kessē, kessā n.m. full moon

JBABowl 71.1:8 :
See the entire entry for šabbā{šubbā), šabbəṯā (šubbəṯā) n.f. sabbath; week

JBABowl 71.1:8 :תלתין יומי ירחא שבעה יומי שבתא שבתא כסא וריש ירחא‏ : thirty days of the month, seven days of the week, Sabbath, full moon and new moon
See the entire entry for šabbā{šubbā), šabbəṯā (šubbəṯā) n.f. sabbath; week