Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† ăgēmă, ătis, n., = ἄγημα, in the Macedonian army, a corps or division of soldiers: addita his ala mille ferme equitum: agema eam vocabant, Liv. 37, 40; 42, 51; so id. 42, 58; Curt. 4, 13, 26.