One of the mysteries of the English language finally explained.
1Coursing and Horse Racing. Of a race: open to animals of all ages.
2Generally. Of, relating to, or involving people of all ages; inclusive of everyone, regardless of age.
Chiefly Coursing. A race open to competitors of all ages. Also: the competitors entered for a race of this type collectively. Now rare.
Mid 19th century. From all + the plural of age. Compare earlier all-age.
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