The Collaborative International Dictionary of English v.0.48:
Overfeed \O`ver*feed"\, v. t. & i. [imp. & p. p. Overfed; p. pr. & vb. n. Overfeeding.] To feed to excess; to surfeit. [1913 Webster]WordNet (r) 3.0 (2006):
overfeeding n 1: excessive feeding