'seldom-advised' originates from the combination of 'seldom,' meaning 'rarely,' and 'advised,' meaning 'given advice or guidance.'

'Seldom' comes from Old English 'seldan,' and 'advised' comes from Old French 'aviser,' which eventually became the modern English word 'advise.'

Initially, 'seldom' meant 'rarely' and 'advised' meant 'given advice,' and this meaning has largely remained the same in modern usage.