Plural form of delicious things; instances or varieties of something extremely tasty or pleasing.
From delicious (from Latin deliciosus, meaning 'delightful') plus the plural suffix -es. The word evolved from Old French delicious, combining de- (intensive) and the root related to delight.
This plural form is quite rare in modern English because we typically use 'delicacies' instead—but deliciouses shows how English speakers once freely pluralized adjectives used as nouns, a pattern that's largely disappeared from our language.
Complete word intelligence in one call. Free tier — 50 lookups/day.