Lewis & Short

Tentyra, ōrum, n., = Τέντυρα, τά, a city in Upper Egypt, the modern village of Denderah, Juv. 15, 35 and 76.
Called also Tentyris, Plin. 5, 9, 11, § 60.
Hence,

  1. A. Tentyrītes, ae, adj., of or belonging to Tentyra, Tentyrite: nomos, Plin. 5, 9, 9, § 49.
    Plur. subst.: Tentyrītae, ārum, m., the inhabitants of Tentyra, Tentyrites, Plin. 8, 25, 38, § 92 (better, Tentyri insula); Sen. Q. N. 4, 2, 15.
  2. B. Tentyrītĭcus, a, um, adj., of Tentyra, Tentyric: linum, Plin. 19, 1, 2, § 14.