Imam

google

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from Arabic 'imām ‘leader’, from 'amma ‘lead the way’.

wiktionary

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Borrowed from Arabic إِمَام‎ (ʾimām, “leader”).

etymonline

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imam (n.)

1610s, from Arabic, literally "leader; one who precedes," from amma "to go before, precede." As a high religious title used differently by Sunni and Shiite, but also used of the leader of daily prayers in the mosque and generally for a Muslim prince or religious leader. Related: Imamate.