Definition of overlies:
(v) :
(transitive) To lay, spread, or apply (something) over or across (something else); to overspread.
(n) :
A covering over something else.
(n) :
(photography, graphic arts) An image to be overlaid on another; a superimposition or diapositive.
(n) :
(Internet) A pop-up covering an existing part of the display.
(n) :
(programming) A block of program code that is loaded over something previously loaded, so as to replace the functionality.
(v) :
To overwhelm; to press excessively upon.