Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. suc-centŭrĭo (subc-), no perf., ātum, 1, v. a., to receive as a recruit into a centuria; hence, transf., to put in the place of another, receive as a substitute (very rare): succenturiare est explendae centuriae gratiā supplere, subicere, Plaut. ap. Saturione: succenturia, centum require, qui te delectent domi, Fest. p. 306 Müll.: nunc prior adito tu, ego in insidiis hic ere Succenturiatus, si quid deficies, as a reserve, Ter. Phorm. 1, 4, 55; cf.: tota metaphora de re militari est. Succenturiati dicuntur, qui explendae centuriae gratiā subiciunt se ad supplementum ordinum, Don. ad. h. l.: et alia esca melior atque amplior succenturietur, Favor. ap. Gell. 15, 8, 2.