In colloquial Persian, the suffix {-(h)e} is known as “referential marker” and serves to point to an entity previously mentioned, e.g. pesar-e ‘the boy (in question)’. It is attached to the last element of the noun phrase, e.g. pesar xub-e resid ‘the good boy arrived’. I argue that there is an undescribed plural referential marker, formally identical to the plural suffix {-(h)å} but whose functions and syntactic distribution are identical to {-(h)e}, for instance, pesar xub-å residan ‘the good boys (in question) arrived’. The plural referential marker thus differs from the plural marker, which is attached to the head noun, with dependent elements linked by the ezafe, e.g. pesar-å=ye xub residan ‘(some) good boys arrived’. I will argue that the Persian plural suffix {-(h)å} was degrammaticalised in that the suffix acquired the possibility of being detached from the head noun by analogy with the singular suffix {-(h)e}.