'perilously-blended' originates from the combination of 'perilous' and 'blend', where 'perilous' comes from Old French 'perilleux', meaning 'dangerous', and 'blend' from Old Norse 'blanda', meaning 'to mix'.

'perilleux' transformed into the Middle English word 'perilous', and 'blanda' became the Middle English 'blenden', eventually forming the modern English 'perilously-blended'.

Initially, 'perilous' meant 'full of danger', and 'blend' meant 'to mix', evolving into the current meaning of 'dangerously mixed'.