Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ălĭmōnĭum, ii, n. [id.; the termination as in testi-monium, parsi-monium, vadimonium] (ante-class. and post-Aug. for the class. alimentum), nourishment, sustenance, support: mellis, Varr. R. R. 3, 16, 15; 3, 1, 8 fin.; 2, 1, 14; 5, 16: infectus alimonio, Tac. A. 11, 16: collationes in alimonium atque dotem puellae recepit, Suet. Calig. 42: quaerere, Juv. 14, 76: denegare, Dig. 25, 3, 4; Arn. 5, p. 167.