1. to serve (food or drink) in excessive quantity or too generously
Usage: common in hospitality and food service contexts
2. to provide service or assistance beyond what is needed or requested
Usage: used in customer service and professional contexts

Examples

• The restaurant tends to overserve portions, leaving many customers unable to finish their meals.
• The waiter overserved wine at dinner, filling glasses before they were empty.
• Some businesses overserve their premium clients with unnecessary add-ons.
• The chef was instructed not to overserve the expensive appetizers at the event.
• By overserving dessert, the caterer ran out before all guests were seated.
• The concierge was careful not to overserve amenities that guests hadn't requested.