imbruting

v.

使沦为禽兽，堕落，（使）残忍( imbrute的现在分词 )；

Booker T. Washington Papers Volume 6
TWO FUNDAMENTAL ECOLOGICAL RELATIONSHIPS THAT DEEPEN THE SENSE OF SOCIAL, ECONOMICAL AND ETHICAL VALUES OF MENTAL REPRESENTATIONS
Cutting, grinding, or polishing machine for diamonds or other stones and the like
Gem grinding device