He who places faith in the heart of His servants.
“He is Allah, than whom there is no other God, the Sovereign Lord, The Holy One, Peace, THE KEEPER OF FAITH, the Guardian, the Majestic, the Compeller, the Superb. Glorified be Allah from all that they ascribe as partner (unto Him)”
(59:23) The Holy Quran
From the root ā-m-n with the classical Arabic connotations: to be secure, safe, free from fear to be quiet, tranquil to grant protection, safeguard.