British spelling of diabolize; to make diabolic or devilish.
From diabolic + -ise (British spelling of -ize), from Greek -izein. The British English preference for -ise over -ize developed in the 19th century.
Interestingly, many British publishers accept both -ise and -ize spellings, but Oxford style prefers -ise for most words, while -ize is actually historically more accurate to Greek origins!
Complete word intelligence in one call. Free tier — 50 lookups/day.