ferocity

 
Pronunciation: /fəˈrɒsɪti/

noun (plural ferocities)

[mass noun]
  • the state or quality of being ferocious: the ferocity of the storm caught them by surprise [count noun]: she hated him with a ferocity that astonished her

Origin:

mid 16th century: from French, or from Latin ferocitas, from ferox, feroc- 'fierce'