'seldom-supervised' originates from the combination of 'seldom' and 'supervised'. 'Seldom' comes from Old English 'seldan', meaning 'rarely', and 'supervised' comes from Latin 'supervidere', where 'super-' meant 'over' and 'videre' meant 'to see'.

'Seldan' transformed into the Middle English 'seldom', and 'supervidere' transformed into the French 'superviser', eventually becoming the modern English 'supervised'.

Initially, 'seldom' meant 'rarely', and 'supervised' meant 'overseen'. The combined term 'seldom-supervised' retains these meanings, indicating something that is rarely overseen.