rantistirion
A ritual sprinkler used in some Christian rites.
The priest stands in front of the Kouvouklion throughout the Encomia. At the Third Stasis when the verse "Eranan ton Tafon ai miroforoi mira lian proi elthousai – early in the morning the myrrh-bearers came to Thee and sprinkled myrrh upon Thy tomb" is sung the priest sprinkles the Epitaphios with rosewater, using the rantistirion (sprinkler).
Where it comes from
Borrowed from Byzantine Greek ῥαντιστήριον (rhantistḗrion), from ῥαντίζω (rhantízō) (a late form of ῥαίνω (rhaínō, “to sprinkle, purify”), from Proto-Indo-European *weri) + -ῐον (-ĭon, “suffix forming diminutive nouns”).
Adapted from the Wiktionary entry rantistirion (CC BY-SA 4.0).