'tapering-fruited' originates from Modern English, formed by combining the present-participle adjective 'tapering' (from the verb 'taper', meaning 'to become or make narrower') and 'fruited' (adjectival form of 'fruit', meaning 'having fruit').

'tapering' comes from the verb 'taper' (attested in Middle English as 'taperen'/'taper'), while 'fruit' comes into English via Old French 'fruit' from Latin 'fructus'; the compound itself is a relatively recent concatenation in botanical and descriptive English.

Initially the elements meant 'to become narrower' and 'fruit' respectively; as a compound it has consistently meant 'having fruits that are tapered or narrow' in descriptive/botanical usage.