'seldom-reviewed' originates from the combination of 'seldom' and 'reviewed'. 'Seldom' comes from Old English 'seldan', meaning 'rarely', and 'reviewed' is the past participle of 'review', which comes from the Latin 'revidere', meaning 'to see again'.

'Seldan' transformed into the Middle English 'seldom', and 'revidere' transformed into the Old French 'reviser', eventually becoming the modern English 'review'.

Initially, 'seldom' meant 'rarely', and 'review' meant 'to see again'. The combination 'seldom-reviewed' retains the meaning of 'not frequently examined'.