tyrannulet

 
Pronunciation: /tʌɪˈranjʊlɪt/

noun

  • a small tropical American bird of the tyrant flycatcher family, typically with drab greyish or greenish plumage.
    • Family Tyrannidae: several genera and many species

Origin:

diminutive based on modern Latin Tyrannus (genus name), from Greek turannos 'tyrant'