old-fashionedto collect and store something to use in the future:
We started laying up firewood for the winter.
WORD CHOICE WORD CHOICE lay, lieThe verb lay must have an object. It is a slightly literary way to say 'put something somewhere'• She lays a silk cloth over the table.The verb lie does not have an object. It means 'be or get into a horizontal position somewhere'• Let's lie on the grass. • Lie down here for a while.!! lay is also the past tense of lie• I lay on the couch and tried to relax. The past tense of lay is laid• He laid his hand on my shoulder.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.