'half-heartedly-formed' originates from the combination of 'half-heartedly' and 'formed', where 'half-heartedly' means 'with little enthusiasm' and 'formed' means 'created or developed'.

The term 'half-heartedly-formed' evolved from the individual words 'half-heartedly' and 'formed', which have been used in English since the 16th and 14th centuries respectively.

Initially, 'half-heartedly' meant 'with little enthusiasm', and 'formed' meant 'created'. Together, they convey the idea of something created with little enthusiasm.