Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dōlĭum, ii, (plur. written DOLEA, Calend. ap. Orell. Inscr. II. p. 381), n. [cf. Gr. δαίδαλος, δαιδάλεος, skilfully wrought; Lat. dolo], a very large jar of globular form, with a wide mouth (cf.: vas, arpa, seria, cadus, lagena, culeus, amphora, urna, congius, cyathus, urceus, testa, etc.): dolium aut seria, Varr. ap. Serv. Verg. A. 6, 31; Cato R. R. 69, 1; Juv. 14, 308; Varr. R. R. 3, 15, 2; Col. 11, 2, 70; Plaut. Cist. 2, 2, 7; Ter. Heaut. 3, 1, 51; Hor. C. 3, 11, 27; id. Epod. 2, 47 et saep.: de dolio haurire, wine from the jar, i. e. new, not yet drawn off, Cic. Brut. 83, 288.
Prov.: in pertusum ingerimus dicta dolium, for to talk in vain, Plaut. Ps. 1, 3, 135; cf. cribrum.