To eat excessively or greedily; to consume large quantities of food with great enthusiasm.
Derived from 'gormand' (noun) with the verb-forming suffix -ise (British spelling) or -ize (American). The Old French 'gourmand' is the ultimate source, with the suffix converting the noun to a verb.
British English uses -ise while American English uses -ize for the same verb—'gormandise' vs 'gormandize'—showing how the same French root produced two spelling traditions that persist today.
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