etrog

or eth·rog, es·rog

[es-rohg, -ruh g, et-; Sephardic Hebrew et-rawg; Ashkenazic Hebrew es-rohg]
noun, plural et·rogs, et·ro·gim [Sephardic Hebrew et-raw-geem; Ashkenazic Hebrew es-roh-gim] /Sephardic Hebrew ɛt rɔˈgim; Ashkenazic Hebrew ɛsˈroʊ gɪm/.
  1. Judaism. a citron for use with the lulav during the Sukkoth festival service.

Origin of etrog

From the Hebrew word ethrōgh
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018