κυριακός
Alt. κυ_ριακός, ή, όν
Etym. κύριος
"of or for a lord or master": esp. "belonging to the Lord (Christ);" Κ. δεῖπνον "the Lord's Supper", ἡ κυριακὴ ἡμέρα "the LORD'S day, dies Dominica", NTest. (Assumed to be original of the Teutonic "kirk, kirche, church;" but how this Greek name came to be adopted by the Northern nations, rather than the Roman name "ecclesia", has not been satisfactorily explained.)