The story
Sunday + name, since it is what one would be called at church on Sundays.
Etymology from Wiktionary, CC BY-SA 4.0.
Sunday name
Today it means: The full form of one's first name, such as Stephen instead of Steve. Full definition →
Today it means: The full form of one's first name, such as Stephen instead of Steve. Full definition →
Sunday + name, since it is what one would be called at church on Sundays.
Etymology from Wiktionary, CC BY-SA 4.0.