brindar

to toast, drink (a toast) to (to engage in a salutation and/or accompanying raising of glasses while drinking alcohol in honor of someone or something); to offer, provide, bring (to give what is needed or desired); to yield (to produce as a return); to dedicate (to designate (a bull) as being for another person as a mark of respect or affection); to offer (to propose or express one's willingness (to do something))

“brindar un servicio” — provide a service

From brindis (“a toast”), borrowed from German bring dir's (literally “bring it (i.e. a toast) to thee”).