The Wikipedia dictionary defines forfeit as "a premature end of a game".
I'm sure you would be in agreement as to when a game starts. The break.
The game does not have to start ,if you a scheduled to play a match and you don't make it , it's a forfeit a withdraw can be the same thing ,, in some tourneys in other sports you forfeit all your previous wins also ,, so you don't get paid anything
for·feit
ˈfôrfit/
verb
1.
lose or be deprived of (property or a right or privilege) as a penalty for wrongdoing.
"those unable to meet their taxes were liable to forfeit their property"
antonyms: retain
noun
noun: forfeit; plural noun: forfeits
1.
a fine or penalty for wrongdoing or for a breach of the rules in a club or game.
synonyms: penalty, sanction, punishment, penance; More
LAW
an item of property or a right or privilege lost as a legal penalty.
a game in which trivial penalties are exacted.
the action of forfeiting something.
adjective
adjective: forfeit
1.
lost or surrendered as a penalty for wrongdoing or neglect.
"the lands which he had acquired were automatically forfeit"
Origin
Middle English (originally denoting a crime or transgression, hence a fine or penalty for this): from Old French forfet, forfait, past participle of forfaire ‘transgress,’ from for- ‘out’ (from Latin foris ‘outside’) + faire ‘do’ (from Latin facere ).