The British spelling variant of exorcization; the act of driving out an evil spirit or demon, typically through religious rituals or prayers.
From exorcise with the British suffix -ation (British spelling uses -isation for many -ization words). The root comes from Greek exorkizein (ex- out, horkizein to bind by oath), originally meaning to bind someone by oath to command demons to leave.
British English adds an 's' in the middle (-isation) while American English uses 'z' (-ization), and this difference traces back to how French borrowed the Greek word differently than German did—a reminder that English's two major dialects inherited different pathways for the same root words!
Complete word intelligence in one call. Free tier — 50 lookups/day.