Beneath and Decumbent

Beneath adverb - In or to a lower place.

Decumbent and beneath are semantically related. In some cases you can use "Decumbent" instead an adjective "Beneath".

Decumbent adjective - Lying down; in a position of comfort or rest.

Beneath and decumbent are semantically related. Sometimes you can use "Beneath" instead an adjective "Decumbent".