'infrequently-supplied' originates from the combination of 'infrequent' and 'supply', where 'infrequent' means 'not occurring often' and 'supply' means 'to provide or furnish'.

'Infrequent' comes from the Latin word 'infrequens', and 'supply' comes from the Latin word 'supplere'.

Initially, 'infrequent' meant 'not crowded' and 'supply' meant 'to fill up', but over time they evolved into their current meanings.