The Collaborative International Dictionary
Imbruting
Imbrute \Im*brute"\, v. t. [imp. & p. p. Imbruted; p. pr. & vb. n. Imbruting.] [Pref. im- in + brute: cf. F. abrutir. Cf. Embrute.] To degrade to the state of a brute; to make brutal.
And mixed with bestial slime,
THis essence to incarnate and imbrute.
--Milton.
Wiktionary
imbruting
vb. (present participle of imbrute English)