'infrequently-noted' originates from the combination of 'infrequent' and 'noted', where 'infrequent' means 'not occurring often' and 'noted' means 'observed or mentioned'.

'infrequent' changed from the Latin word 'infrequens' and 'noted' from the Latin word 'notare', eventually becoming the modern English word 'infrequently-noted'.

Initially, 'infrequent' meant 'not crowded' and 'noted' meant 'marked or observed', but over time it evolved into its current meaning of 'rarely observed or mentioned'.