Malamasa ("Impure month") is a term used to describe a period of time, generally a month that occurs every 212 years.
This is an intercalary month is placed into the lunar calendar to remedy a difference between the lunar and solar calendars.
Although this month is required to keep the two calendars
in sync—for example, to keep the spring festivities in the spring—it is seen as
an exceptional occurrence, unclean, and ritually harmful.
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