'infrequently-made' originates from the combination of 'infrequent' and 'made'. 'Infrequent' comes from Latin 'infrequens', meaning 'not frequent', and 'made' is the past participle of 'make', from Old English 'macian'.

'Infrequent' evolved from Latin 'infrequens' through Middle English, while 'made' evolved from Old English 'macian'. The combination 'infrequently-made' is a modern English construct.

Initially, 'infrequent' meant 'not occurring often', and 'made' meant 'created'. Together, they describe something created rarely.