'single-fruited' originates from Modern English, specifically formed by compounding 'single' + 'fruited', where 'single' meant 'one' (from Latin 'singulus' via Old French) and 'fruit' meant 'fruit' (from Latin 'fructus').

'single-fruited' was formed in Modern English as a compound of 'single' (from Old English/Old French roots ultimately from Latin 'singulus') and 'fruited' (derived from noun/verb 'fruit', from Old French 'fruit', from Latin 'fructus'), producing the descriptive adjective used in botanical contexts.

Initially the components meant 'one' and 'fruit' respectively; over time they were combined into the fixed adjectival phrase meaning 'having a single fruit', a specialized botanical descriptor that retains the original component meanings.