environ
/ɪnˈvaɪərən/verb
with obj.
- formal surround; enclose〈正式〉围绕; 围住; 包围：
the stone circle was environed by an expanse of peat soil.
用石头铺砌的圆形广场四周是一大片泥炭地。
词源
Middle English （formerly also as inviron ）： from Old French environer, from environ 'surroundings', from en 'in' + viron 'circuit' （from virer 'to turn, veer'）.