What does OBM mean in Forums?

of blessed memory

Among the honorifics in Judaism, there are several traditional honorifics for the dead which are used when naming and speaking of the deceased. Different honorifics might be applied depending on the particular status of the deceased. These honorifics are frequently found on gravestones, on memorial walls inside the sanctuary of synagogues, in speeches, and in writing such as in obituaries. In writing, it is most common to use the name followed by an abbreviation of an honorific either in Hebrew or English. For examples, see chart.

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