lay – As in layperson, it derives from Greek laikos, “of the people”—as opposed to clerics. More…
nest egg – Poultry farmers formerly placed a porcelain or other fake egg in a hen’s nest to encourage it to lay more eggs—from this came nest egg, money saved to encourage the making of more. More…
lay, lie – To lay is to place something; to lie is to recline. More…