'early-matured' originates from the combination of 'early' and 'matured', where 'early' meant 'before the usual time' and 'matured' meant 'fully developed'.

'early-matured' changed from the combination of Old English 'ærlice' (early) and Latin 'maturus' (matured) and eventually became the modern English word 'early-matured'.

Initially, it meant 'developing before the usual time', and this meaning has largely remained the same in modern usage.