amok
Concise Oxford English Dictionary © 2008 Oxford University Press:
amok /əˈmɒk/ (also amuck)
▶adverb (in phr. run amok) behave uncontrollably and disruptively.
– origin C17: via Port. amouco, from Malay amok ‘rushing in a frenzy’.
'amok' also found in these Oxford entries:

