'exit-blocked' is a compound word formed from 'exit' and 'blocked'. 'Exit' originates from Latin, specifically the word 'exitus', where 'ex-' meant 'out of' and 'itus' meant 'a going'. 'Blocked' comes from Middle English 'blok', meaning 'obstruction'.

'Exit' changed from the Latin word 'exitus' to the Old French 'issue', and eventually became the modern English word 'exit'. 'Blocked' evolved from the Middle English 'blok', which was influenced by the Old French 'bloc'.

Initially, 'exit' meant 'a way out', and 'blocked' meant 'obstructed'. Together, they describe a situation where a way out is obstructed.