Final answer:
The root "kyriake oikia" means "house of the Lord" and emphasizes the sacredness of the church as a place of worship.
Step-by-step explanation:
The root "kyriake oikia" is Greek and it means "house of the Lord." It is derived from the Greek word "kyrios" meaning "Lord" and "oikia" meaning "house." This root tells us that the church is a sacred place dedicated to worshipping and honoring God. It signifies the spiritual importance and holiness attributed to the church as a place of worship for believers.