Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
cīmex, ĭcis, m. (so always acc. to Neue, Formenl. 1, p. 619 sq.; but fem., Plin. 32, 10, 47 § 136 Sillig and Jan.), a bug, Liv. Andron. ap. Fest. p. 210, 17; Varr. R. R. 1, 2 fin.; Col. 6, 18, 2; Plin. 30, 14, 45, § 131; 29, 4, 17, § 61; Veg. 2, 33, 2; 5, 14, 21; Cat. 23, 2; Petr. 98, 1; Mart. 11, 32 al.
As a term of reproach, * Hor. S. 1, 10, 78.