'earthlike' originates from English, specifically from Old English elements 'eorþe' and 'līc', where 'eorþe' meant 'ground, soil' and 'līc' meant 'having the form of, like'.

'earthlike' developed through Middle English compounds such as 'erthe-liche' / 'erthe-lic' and eventually became the modern English word 'earthlike'.

Initially it meant 'having the characteristics or form of the earth', and over time it has retained that sense, evolving into the modern usage 'resembling or similar to Earth, especially in appearance or conditions'.