1
general::
Also, lay up. Stock or store for future use, as in We laid in supplies for the winter, or Are you sure you've laid up enough material? The first term dates from the late 1500s, the second from about 1400. Also see LAY ASIDE, def. 2; LAY DOWN, def. 4.
American Heritage Idioms
2
general::
Phrase(s): lay someone or something in(to) something
to place someone or something in something. • The women laid the king into the coffin and the funeral procession assembled. • The cook laid the salmon in the poaching liquid., Phrase(s): lay something in
to get something and store it for future use. • They laid a lot of food in for the holidays. • We always lay in a large supply of firewood each November.
McGrawhill's American Idioms And Phrasal Verbs