panegyric       
noun [ C ]  formal uk/ˌpæn.əˈdʒɪr.ɪk/ us/ˌpæn.əˈdʒɪr.ɪk/
 颂词,颂文,颂赞
a speech or piece of writing that praises someone very much and does not mention anything bad about them
  She delivered a panegyric on the president-elect. 她为当选总统献上了一段颂词。