noun al·ma·gest \ˈal-mə-ˌjest\

Definition of almagest

  1. :  any of several early medieval treatises on a branch of knowledge

Origin and Etymology of almagest

Middle English almageste, from Anglo-French & Medieval Latin, from Arabic al-majusti, the Arabic version of Ptolemy's astronomy treatise, from al the + Greek megistē (syntaxis), literally, greatest (composition)

First Known Use: 14th century

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