umanā ), "trustworthy, in whom one can place one’s trust", whence al-Amīn, with the article, as an epithet of Muḥammad in his youth. As a noun, it means "he to whom something is entrusted, overseer, administrator": e.g.
Amīn al-Waḥy , "he who is entrusted with the revelation", i.e. the angel Gabriel. The word also frequently occurs in titles, e.g. Amīn al-Dawla (e.g. Ibn al-Tilmīd̲h̲ others), Amīn al-Dīn (e.g. Yāḳūt), Amīn al-Mulk, Amīn al-Salṭana. In addition to these general and undefined uses of the word
amīn , there are other more technical uses,…