variants or pre-order
preordered or pre-ordered; preordering or pre-ordering

transitive + intransitive

: to order (something) in advance : to request to purchase (something) before it is available for sale
preorder an upcoming new release
You can preorder online.
preorder noun
or pre-order
plural preorders or pre-orders
The book is now available for preorder.
They're already taking preorders.