alphaomega
Alphaomega is a term derived from the first and last letters of the Greek alphabet, alpha and omega. This pairing is often used symbolically to represent the totality of something, from beginning to end, or the entirety of existence. The phrase "I am the Alpha and the Omega" appears in the Book of Revelation in the New Testament of the Bible, attributed to God, signifying divine completeness and eternality.
Beyond its religious connotations, "alphaomega" is employed in various contexts to denote comprehensiveness or ultimate authority.