'seldom-suggested' originates from the combination of 'seldom' and 'suggested'. 'Seldom' comes from Old English 'seldan', meaning 'rarely', and 'suggested' is the past participle of 'suggest', which comes from Latin 'suggestus', meaning 'to bring up'.

'Seldan' transformed into 'seldom' in Middle English, and 'suggestus' evolved into 'suggested' in modern English.

Initially, 'seldom' meant 'rarely', and 'suggested' meant 'brought up for consideration'. The combined form 'seldom-suggested' retains the meaning of 'not often proposed'.