Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
rēsīna, ae, f. [perh. kindr. with ῤητίνη], resin, rosin, Auct. B. Hisp. 33; Plin. 16, 11, 22, § 53; 24, 6, 19, § 28; 24, 6, 22, § 32; Cato, R. R. 23, 3; Pall. 3, 25, 23; Mart. 3, 74, 4; 12, 32, 21: vinum quod resinā conditum est, Cels. 4, 5, 29: resina terebintha, turpentine, Col. 12, 20, 3.