動詞 pronate:

1. turn the forearm or the hand so that the palm is directed downwards

pro.nate

v.（動詞）
pro.nat.ed,pro.nat.ing,pro.nates
v.tr.（及物動詞）

To turn or rotate (the hand or forearm) so that the palm faces down or back.
使旋前，使內轉：轉或旋（手或前臂）使掌面朝下或朝后
To turn or rotate (the sole of the foot) by abduction and eversion so that the inner edge of the sole bears the body`s weight.
使旋前，使內轉：通過轉或旋（足底）使足底內側承受體重和重量
To turn or rotate (a limb) so that the inner surface faces down or back. Used of a vertebrate animal.
使（手，前肢等）掌面向下：轉或旋（四肢）使其內側表面朝下或朝后。用來指脊椎動物
To place in a prone position.
使倒伏：置于向下的位置
v.intr.（不及物動詞）
To become pronated.
成為俯臥的
To assume a prone position.
俯臥：擺出俯臥的位置

來源：
Late Latin prôn3re prôn3t- [to bend forward]
后期拉丁語 prôn3re prôn3t- [向前彎]
from prônus [turned forward] * see prone
源自 prônus [轉向前] *參見 prone