Origin of underlaid
verb (used with object), un·der·laid, un·der·lay·ing.
Origin of underlay
Examples from the Web for underlaid
Not merely the nails and the lips, but the whole surface of the skin is underlaid with a thick mat, or network, of blood vessels.A Handbook of Health|Woods Hutchinson
The entire extent of Walden's Ridge is underlaid with veins of coal, and iron ore is plentiful, especially in the foot hills.
Sometimes cobblestone walls are overlaid or underlaid by, or even intermingled with, sandstone walls.Aztec Ruins National Monument--New Mexico|John M. Corbett
The carpet should be plain in design, and underlaid with padding.Practical Suggestions for Mother and Housewife|Marion Mills Miller
Farther in the interior the land is principally of a sandy formation, most of it underlaid with clay.