太た郎ろう月づきたろうづきMeanings1nounfirst lunar monthArchaic name for the first month of the lunar calendar, equivalent to 睦月 (むつき). Used in historical or traditional contexts.See also: 睦月旧きゅう暦れきでは、太た郎ろう月づきは睦月むつきと同おなじく一いち月がつを指さす。In the old lunar calendar, 太郎月, like 睦月, refers to the first month.