'orderly-maintained' originates from the combination of 'orderly' and 'maintained', where 'orderly' means 'neat and organized' and 'maintained' means 'kept in a particular condition'.

The term 'orderly-maintained' evolved from the need to describe something that is both organized and well-kept.

Initially, it meant 'kept in a neat condition', and this meaning has largely remained the same in modern usage.