Bastardize \Bas"tard*ize\, v. t. [imp. & p. p. {Bastardized}
(?); p. pr. & vb. n. {Bastardizing}.]
1. To make or prove to be a bastard; to stigmatize as a
bastard; to declare or decide legally to be illegitimate.

The law is so indulgent as not to bastardize the
child, if born, though not begotten, in lawful
wedlock. --Blackstone.

2. To beget out of wedlock. [R.] --Shak.

3. to change something (for example, art forms) so that its
value declines; to debase.

Syn: bastardise.
[WordNet 1.5]