Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† trăpētus, i, m., = τραπητός, an olivemill, oil-mill, Cato, R. R. 20, 1; 20, 12; 22, 3; Verg. G. 2, 519; Plin. 15, 6, 6, § 23.
Collat. form trăpētum, i, n., = τραπητόν, Col. 12, 52, 6; Dig. 19, 2, 19, § 2.
And plur.: trăpētes, um, m., = τράπητες, Varr. L. L. 4, § 138 Müll.; id. R. R. 1, 55, 5; Cato, R. R. 18, 2.