Quenya 

-incë

suffix. diminutive ending

cirinci

no bigger than wrens, but all scarlet, with piping voices on the edge of human hearing

cirinci ("k"), sg. *cirincë, noun: a species of birds, "no bigger than wrens, but all scarlet, with piping voices on the edge of human hearing" (UT:169). The word seems to incorporate the diminutive ending -incë.