What is the source of the Hebrew word "Rabbi" - which is commonly applied to a Rav, Rosh Yeshiva, etc.?
closed as not a real question by Isaac Moses♦ Jul 5 '12 at 19:34
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In the Online Etymological Dictionary's entry on the corresponding English word, it says that the Hebrew word is Mishnaic Hebrew for "my master," combining "Rav" - meaning "master" or "great one" with the suffixx "-i" - meaning "my." "Rav," in turn, is associated with the Semitic root "R-B-B," which means "to be great or numerous."
Unkelus translates the word "Sar" ("officer") to mean "Rav" ("Rabbi"). Officer of God, I guess? (See Bereshit 26:26).
Rabbi is Roshei Teivos R'osh B'nei Y'isroel (Taamei HaMinhagim Likutim #85).
Most likely the current English term derives from the original word Rabbi.