Strong's #5056: naggach (pronounced nag-gawkh')
from 5055; butting, i.e. vicious:--used (wont) to push.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
naggâch
1) addicted to goring, apt to gore
Part of Speech: adjective
Relation: from H5055
Usage:
This word is used 2 times:
Exodus 21:29: "But if the ox were wont to push with his horn in time past, and it hath been testified to his owner,"
Exodus 21:36: "if it be known that the ox hath used to push in time past, and his owner"