Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
collāre (nom. sing. first in Apic. 7, 5 sq.), is (collārium, ii, acc. to Prisc. p. 590 P.), n. [collum], a band or chain for the neck, a collar; abl. collari, Lucil. ap. Non. p. 36, 26; Plaut. Capt. 2, 2, 107; nom. plur. collaria, Varr. R. R. 2, 9, 15 fin.