Webster's Revised Unabridged Dictionary · 1913

Ferocious

Ferocious , adjective

[Latin ferox, -ocis, fierce: compare French féroce. See Ferocity.]

Fierce; savage; wild; indicating cruelty; ravenous; rapacious; as, ferocious look or features; a ferocious lion.
The humbled power of a ferocious enemy. — Lowth