1The name of a day in any of various calendar systems.
2(In West African traditional naming, and that of communities of West African descent) a name given to a child reflecting the day of the week on which he or she was born.
Origin
Mid 19th century.
Definition of day name in US English:
day name
noun
1The name of a day in any of various calendar systems.
2(In West African traditional naming, and that of communities of West African descent) a name given to a child reflecting the day of the week on which he or she was born.