originalrules

noun
UK /əˈrɪdʒ.ɪ.nəl ruːlz/
US /əˈrɪdʒ.ə.nəl ruːlz/

The first set of rules made before anyone changes them.

The game was played by the originalrules before the new ones were added.


OTHER MEANINGS

2. The rules that a game or club had when it first began.

The club still keeps its originalrules in a framed book.

3. The basic rules that other rules are built from.

Every new version of the game follows the originalrules.

4. The first written rules of a group or organization.

The originalrules were signed by all the founding members.