What does the prefixes in brackets at the name of the weapon (Dead Island: Riptide)

colors clear ,but not clear that's what
(evil)
(wild)
(crippling)
(damaging)
(strong)
(ill)
(evil)
(strong)
(exterminate)
ITP - what is the meaning of these prefixes ,is there a table or scale ,some stronger ,some faster ,some critical - is there some sort of infa on this strange crap