'infrequently-passed' originates from the combination of 'infrequent' and 'passed', where 'infrequent' means 'not occurring often' and 'passed' refers to 'having been traversed'.

'Infrequent' comes from the Latin word 'infrequens', meaning 'not crowded', and 'passed' is derived from the Latin 'passare', meaning 'to step'.

Initially, 'infrequent' meant 'not crowded', but over time it evolved to mean 'not occurring often'.