Hot answers tagged acronyms
A possible candidate would be the Amora אביי - whose real name was נחמני but was called אביי by the acronym for אֲשֶׁר-בְּךָ יְרֻחַם יָתוֹם. Read more details here. Unless you want to argue it was Avraham Avinu: אַבְרָהָם, כִּי אַב-הֲמוֹן גּוֹיִם נְתַתִּיךָ
Some speculation inspired by the comments to this question. The verse in Mishlei (10:7) says: זֵכֶר צַדִּיק, לִבְרָכָה; וְשֵׁם רְשָׁעִים יִרְקָב. The memory of the righteous shall be for a blessing; but the name of the wicked shall rot. Rashi explains: The mention of a righteous man is for a blessing: Whoever mentions a righteous man ...
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