|Kanji in this term|
|Grade: 5||Grade: 2|
sipasu > siɸasu > siwasu. The etymology is unknown, but the final -wasu is perhaps related to the verb 果つ (hatsu, “to come to an end”).
The kanji are ateji, and are made up of the characters for "priest" and "run". There were traditionally many services for Buddhist priests to attend in the last month of the lunar calendar.
- (archaic) the twelfth month of the lunar calendar
c. 859-985, Kagura Uta, Kodai Kayōshū, page 337:
- 本 乎美名古乃左衣八 末 志毛月志波須乃 加伊古本千
- (poetic) December
- (Japanese calendar months) 睦月 (mutsuki), 如月 (kisaragi), 弥生 (yayoi), 卯月 (uzuki), 皐月 (satsuki), 水無月 (minazuki), 文月 (fumizuki), 葉月 (hazuki), 長月 (nagatsuki), 神無月 (kannazuki), 霜月 (shimotsuki), 師走 (shiwasu)