American spelling: to eat or act greedily; to behave like a glutton.
From 'glutton' plus the American verb-forming suffix '-ize' (from Greek '-izein'). This is the preferred spelling in American English, maintaining consistency with scientific and medical terminology.
American English standardized on '-ize' partly because it matches scientific terms like 'oxidize' and 'analyze'—choosing one spelling system made dictionaries tidier and connected glutton-words to chemistry.
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