'slowly-formed' originates from the combination of 'slowly' and 'formed', where 'slowly' is derived from Old English 'slāwlice', meaning 'in a slow manner', and 'formed' is derived from Old English 'geformian', meaning 'to shape or create'.

'slowly' changed from Old English 'slāwlice' to Middle English 'slowliche', and eventually became the modern English word 'slowly'. 'Formed' evolved from Old English 'geformian' to Middle English 'formen', and eventually became the modern English word 'formed'.

Initially, 'slowly' meant 'in a slow manner', and 'formed' meant 'to shape or create'. The combined term 'slowly-formed' retains the original meanings, indicating something created at a gradual pace.