'infrequently-borne' originates from the combination of 'infrequent' and 'borne', where 'infrequent' means 'not occurring often' and 'borne' is the past participle of 'bear', meaning 'carried'.

'infrequent' changed from the Latin word 'infrequens' and 'borne' from the Old English 'beran', eventually forming the modern English term 'infrequently-borne'.

Initially, 'infrequent' meant 'not crowded' and 'borne' meant 'carried', but over time it evolved into its current meaning of 'rarely carried'.