This is the 363rd most frequent Greek word.
κυριάκος
"Κυριάκος" means "of the Lord" or "belonging to the Lord."
Here, 'Κυριάκος' is used as a proper noun, denoting a specific person's name.
Ο Κυριάκος είναι καλός μαθητής.
Kyriakos is a good student.
Here, 'Κυριακή', a related word, is used to refer to Sunday, showcasing the root's relation to time or days of the week.
Η καλή κυριακή είναι κυριακάτικη παράδοση.
The good Sunday is a Sunday tradition.
Here, 'Κυριάκος' is again used as a proper noun in a grammatical sentence involving relationships.