excess
Word family
Synonym discussion
Sense: noun/1
All three words describe having more than needed, but they differ in tone and context. 'Surplus' is the most neutral and often positive — a 'budget surplus' is good news, while 'excess' almost always carries a warning that something is too much. 'Glut' is specific to markets and supply, describing a situation where too many goods are available and prices drop, such as an 'oil glut.' 'Surfeit' is the most formal and literary, appearing in phrases like 'a surfeit of riches' to emphasize the unpleasant results of having too much. In everyday use, 'excess' is the broadest choice: 'An excess of sugar harms your teeth' sounds natural, whereas 'a surplus of sugar' would sound odd in that warning context.
Common collocations
Etymology
Excess entered English in the 14th century from Old French 'exces,' which came from Latin 'excessus' — meaning 'a going out, a departure, a surpassing.' The Latin word was formed from 'excedere' (ex- 'out' + cedere 'to go'). Its earliest English sense was 'a deviation from proper conduct,' which later evolved into the modern meanings of having more than is needed and behaving without restraint.