1. To get into a prostrate position, as in submission; SYN. bow down.
2. To render helpless or defenseless
3. To throw down flat, as on the ground

ETYM Latin prostratus, p. p. of prosternere to prostrate; pro before, forward + sternere to spread out, throw down. Related to Stratum.
1. Lying at length, or with the body extended on the ground or other surface; stretched out.
2. Lying at mercy, as a supplicant.
3. Lying in a humble, lowly, or suppliant posture.