Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
servĭtūdo, ĭnis, f. [servus], slavery, servitude (perh. only in the foll. passages): servitudinis homines expertos, Liv. 24, 22, 2 Drak. N. cr. dub. (Weissenb. servitutis): eritudo servitudo, Paul. ex Fest. p. 83 Müll.: servitudo, δουλεία, Gloss. Philox.