su·per·in·cum·bent 
(s′pər-ĭn-kŭmbənt)
(s′pər-ĭn-kŭmbənt)adj.
Lying or resting on or above something.
[Latin superincumbēns, superincumbent-, present participle of superincumbere, to lie on top of : super-, super- + incumbere, to lie down; see INCUMBENT.]
su′per·in·cumbence, su′per·in·cumben·cy n.