The term 'departure-linked' is a compound word formed by combining 'departure' and 'linked'. 'Departure' originates from the Old French 'departir', meaning 'to divide or separate', and 'linked' comes from the Old English 'hlinc', meaning 'a ridge or bank'.

'Departure' evolved from the Old French 'departir', while 'linked' evolved from the Old English 'hlinc'. The combination of these words into 'departure-linked' is a modern English formation.

Initially, 'departure' meant 'to divide or separate', but over time it evolved to mean 'the act of leaving', while 'linked' has maintained its meaning of 'connected'.