'permanently-linked' originates from the combination of 'permanent' and 'link', where 'permanent' comes from Latin 'permanens', meaning 'remaining to the end', and 'link' from Old Norse 'hlank', meaning 'a chain'.

'permanens' transformed into the Middle English 'permanent', and 'hlank' evolved into the modern English 'link', eventually forming the compound 'permanently-linked'.

Initially, 'permanent' meant 'lasting forever', and 'link' meant 'a connection', evolving into the modern sense of 'indefinitely connected'.