Clitic doubling is found in many languages, including Albanian, Arumanian, Macedonian, Bulgarian, Degema, Greek, Persian, Romanian, Somali, Italian, and Spanish.
Like the other Scandinavian languages, Danish has a special inflection for the passive voice with the suffix -s, which is historically a reduced enclitic form of the reflexive pronoun sig ("himself, herself, itself, themselves"), e.g. han kalder sig "he calls himself" > han kaldes "he is called".