Merriam-Webster's Collegiate® Dictionary, 11th Edition
PROSTRATE
I. adjective see: strew
Date: 14th century
stretched out with face on the ground in adoration or submission, completely overcome and lacking vitality, will, or power to rise , trailing on the ground ; procumbent , see: prone
II. transitive verb (prostrated; prostrating)
Date: 15th century
to throw or put into a prostrate position, to put (oneself) in a humble and submissive posture or state , to reduce to submission, helplessness, or exhaustion