Another particular characteristic feature of the Akathist is the extraordinary length of the refrain or "ephymnion" which conists of a great number of verses beginning with χαῖρε (“Rejoice”) which are called in Greek "Chairetismoi" (Χαιρετισμοί, "Rejoicings") or in Arabic "Madayeh", respectively; in the Slavic tradition it is known as "Akafist". The chairetismoi are only repeated in every second oikos, and from a musical point of view the "ephymnion" consists just of a short musical phrase, either about the last χαῖρε verse or about allelouia.