Question: what does obm stand for in hebrew?
Answer: The most common honorific is "of blessed memory," and the Hebrew transliteration is "zikhrono livrakha" (m.) / "zikhronah livrakha" (f.) (Hebrew: (f.) "זיכרונה לברכה" \ (m.) " זיכרונו לברכה"). It is often abbreviated in English both as OBM and as “Z"L” The Hebrew abbreviation is " ז״ל."