"Cumbent" is a word in ENGLISH

Lying down; recumbent.

Lying down; prostrate; recumbent.

Lying; resting; reclining; recumbent; superimposed; superincumbent.

pahaláy-hálay - To lie down lazily or comfortably without sleeping, stretch one’s limbs, rest in a recumbent or half-reclining position, …

Leaning; reclining; lying; as, the recumbent posture of the Romans at their meals. Hence, figuratively; Resting; inactive; idle.