The Collaborative International Dictionary of English v.0.48:
Taint \Taint\, v. i. [imp. & p. p. Tainted; p. pr. & vb. n. Tainting.] To thrust ineffectually with a lance. [Obs.] [1913 Webster]WordNet (r) 3.0 (2006):
tainted adj 1: touched by rot or decay; "tainted bacon"; "`corrupt' is archaic" [syn: corrupt, tainted]