Searching for the original definition of online algorithms
Thanks.

With Garmow's comment I was able to find the first two references which also called on-line algorithms as on-line:

Johnson, David S. "Fast algorithms for bin packing." Journal of Computer and System Sciences 8.3 (1974): 272-314.

and

Johnson, David S. Near-optimal bin packing algorithms. Diss. Massachusetts Institute of Technology, 1973.