'evenly-distributed' originates from the combination of 'evenly' and 'distributed'. 'Evenly' comes from Old English 'efen', meaning 'level or equal', and 'distributed' comes from Latin 'distribuere', where 'dis-' meant 'apart' and 'tribuere' meant 'to assign'.

'Evenly-distributed' evolved from the combination of 'evenly' and 'distributed', which were used separately in Middle English and later combined in modern English.

Initially, 'evenly' meant 'in a level manner', and 'distributed' meant 'to assign or divide'. Together, they evolved to mean 'spread out in equal parts'.