'seldom-verified' is a compound word formed from 'seldom' and 'verified'. 'Seldom' originates from Old English 'seldan', meaning 'rarely', and 'verified' comes from Latin 'verificare', meaning 'to make true'.

'Seldom' changed from Old English 'seldan' to Middle English 'seldom', and 'verified' evolved from Latin 'verificare' to Old French 'verifier', eventually becoming the modern English 'verify'.

Initially, 'seldom' meant 'rarely', and 'verified' meant 'to make true'. The compound 'seldom-verified' retains these meanings, indicating something rarely confirmed.