lay by, 1 : to lay aside : discard, 2 : to store for future use : save, 3 : to cultivate (as corn) for the last time (Merriam Webster)
Considering that Merriam Webster's definition of "lay-by" as a verb is the above, can we say, for example, "I'll lay-by it for Christmas"?
I'm asking because it is not difficult to find "lay-by" used in reference to buy goods, albeit there are no referenced sites that I can show; rather it seems a colloquialism.