<P> This honorific "May Hashem avenge his / her blood" is used for an individual who perished as a result of anti-semitism, for example pogroms or the Holocaust . The Hebrew version is "Hashem yinkom damo" (m .) / "Hashem yinkom dama" (f .) and in the Hebrew: (f .) "השם ינקום דמה" \ (m .) "השם ינקום דמו ." The English abbreviation is "HY" D" and in Hebrew "הי ״ ד ." </P> <P> The abbreviation "זי ״ ע / zy" a" stands for "zekhuto yagen ` aleinu / May his merit shield us," and often follows the mention of meritorious righteous ones . A variant is "זיע ״ א / zya" a" which adds "Amen" at the end . </P> <P> The honorific "May the memory of the righteous be a blessing" is used after the names of holy rabbis and other holy people, from Proverbs 10: 7 . In Hebrew transliteration: "zekher tzadik livrakha" and in Hebrew: "זכר צדיק לברכה ." The English abbreviation commonly used is "ZT" L" and in Hebrew, "זצ ״ ל" is used . It is pronounced in reading as "zatzal ." It may be also written as "ZTz" L". </P> <P> It is used primarily in reference to rabbis who have been deceased in recent memory . Thus, one is likely to write "Rabbi Moshe Feinstein ZT" L" (d . 1986) but far less likely to write "Rashi ZT" L" (d . 1105). </P>

May his memory be for a blessing in hebrew