'elongated-fruited' originates from Modern English and is a compound of 'elongated' and 'fruit(ed)'; 'elongated' ultimately comes from Latin 'elongatus' (from 'elongare'), where 'elong-' meant 'made long', and 'fruit' comes from Latin 'fructus', where 'fruct-' meant 'fruit/produce'.

'elongated' developed from Latin 'elongatus' (via Medieval/Old French forms such as 'elonger') into Middle and then Modern English as 'elongate' and its participial/adjectival form 'elongated'; 'fruit' evolved from Latin 'fructus' through Old French 'fruit' into Middle English 'fruit', and the adjectival form 'fruited' is formed by adding the English suffix '-ed' to the noun.

Initially the components referred separately to 'made long' and to 'fruit'; combined in Modern English they yield a descriptive compound meaning 'having long/elongated fruits'.