'unclearly-linked' originates from the combination of 'unclearly' and 'linked', where 'un-' is a prefix meaning 'not', 'clear' means 'easy to perceive', and 'linked' means 'connected'.

'unclearly' evolved from the Old English 'uncleare', and 'linked' from the Middle English 'linken', eventually forming the modern English compound 'unclearly-linked'.

Initially, 'unclearly' meant 'not clear', and 'linked' meant 'connected'. The compound 'unclearly-linked' retains these meanings, indicating a lack of clear connection.