'someplace' originates from the combination of 'some' and 'place', where 'some' meant 'an unspecified amount or number' and 'place' meant 'a particular position or point in space'.

'someplace' evolved from the Old English word 'sum' meaning 'some' and 'plæce' meaning 'place', eventually becoming the modern English word 'someplace'.

Initially, it meant 'an unspecified location', and this meaning has largely remained the same in modern usage.