'storehouse' originates from Middle English, specifically the words 'store' and 'house', where 'store' meant 'a place for keeping goods' and 'house' meant 'a building for human habitation'.

'store' and 'house' combined in Middle English to form 'storehouse', eventually becoming the modern English word 'storehouse'.

Initially, it meant 'a place for keeping goods', and this meaning has largely remained the same in modern usage.