What is "daduchos"

Daduchos or Dadouchos ( "torch-bearer", from δᾶις+ἔχω) is an epithet of Artemis, and notably of Demeter seeking her lost daughter ( Persephone) with a torch. It was also the title of the second priest (ranking after the Hierophant) at the Eleusinian Mysteries, an office inherited in several families of Athens.