'perilously-combined' originates from the English words 'perilous' and 'combine', where 'perilous' meant 'full of danger' and 'combine' meant 'to unite or merge'.

'perilous' changed from the Old French word 'perilleux' and eventually became the modern English word 'perilous'. 'Combine' evolved from the Latin word 'combinare', which transformed into the French word 'combiner', and eventually became the modern English word 'combine'.

Initially, 'perilous' meant 'full of danger', and 'combine' meant 'to unite'. The combined form 'perilously-combined' retains the essence of both meanings, indicating a dangerous union.