"To honour the agreement" means keeping or fulfilling the promises or commitments made within a contract or understanding. It involves showing respect and following through on what was agreed upon. Full definition
Yet, even though he has not responded to my latest e-mails I still find it hard to believe that he would not honour our agreement which was signed by both of us. (accrispin.blogspot.ru)
The organized labour on Wednesday threatened to resume their suspended strike over failure of government to honour the agreement reached with them. (dailypost.ng)
Following the failure of the government to honour the agreement on payment of salary arrears, Adeolu said the association would meet later on Friday to decide on next line of action. (nigeriapoliticsonline.com)