'unconventionally-made' originates from the prefix 'un-' meaning 'not,' combined with 'conventionally,' which comes from 'convention,' derived from Latin 'conventio,' meaning 'agreement or assembly.' The suffix '-ly' indicates an adverbial form, and 'made' is the past participle of 'make,' from Old English 'macian.'

'conventio' transformed into the Old French 'convention,' and eventually became the modern English word 'convention.'

Initially, 'convention' meant 'an assembly or agreement,' but over time it evolved to include the idea of 'standard practices or norms.'