Lewis & Short

pănēgyrĭcus, a, um, adj., = πανηγυρικός,

  1. I. of or belonging to a public assembly or festival; hence, subst.: pănēgy-rĭcus, i, m., the festival oration of Isocrates, in which he eulogized the Athenians, Cic. Or. 11, 37; Quint. 10, 4, 4.
  2. II. Transf., praising, laudatory, eulogistic: libelli, panegyrics, Aus. Prof. 1, 13.
    More freq. subst.: pănēgyrĭcus, i, m., a eulogy, panegyric, Quint. 2, 10, 11; cf. id. 3, 4, 14: etiam malos panegyricis mendacibus adulantur, Lact. 1, 15, 13.