Definition of gamess:
(n) :
A playful or competitive activity.
(n) :
A playful activity that may be unstructured; an amusement or pastime.
(n) :
(countable) An activity described by a set of rules, especially for the purpose of entertainment, often competitive or having an explicit goal.
(n) :
(UK, in the plural) A school subject during which sports are practised.
(n) :
(countable) A particular instance of playing a game.
(n) :
That which is gained, such as the stake in a game.