overservice

over- +‎ service

overservice (third-person singular simple present overservices, present participle overservicing, simple past and past participle overserviced)

1. (transitive) To provide with excessive service.
   • 2004, William T. Brooks, Sales Techniques, page 41:

     She underprices to make the sale, gives away product, provides extended warranty services at no charge, and personally overservices her accounts.

overservice (uncountable)

1. Act of overserving, especially serving alcohol to some who is intoxicated.

• overserve