אַכְזָר (ʾakzār) is
a Hebrew adjective
meaning cruel. It appears
4 times
in 3 books of the Hebrew Bible
(Strong's H393).
Same Hebrew root (TWOT 971a)
Range of meaning (TWOT 971a)cruel, fierce; violent, deadly, brave
Full entry: Brown-Driver-Briggs and Strong's
אַכְזָרadjective: cruel, fierce
Strong's H393אַכְזָר: violent; by implication deadly; also (in a good sense) brave KJV:cruel, fierce.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.