Is it ensure, insure, or assure?
"pertaining to parrots," 1826, from Latin psittacinus, from psittacus "parrot," from Greek psittakos "a parrot," said to be a foreign word.
psittacine psit·ta·cine (sĭt'ə-sīn')
Relating to, resembling, or characteristic of parrots.
Of or belonging to the family Psittacidae, which includes the parrots, macaws, and parakeets.