King James Bible

ENVI'RON, verb transitive [Eng. to veer.]

1. To surround; to encompass; to encircle; as a plain environed with mountains.

2. To involve; to envelop; as, to environ with darkness, or with difficulties.

3. To besiege; as a city environed with troops.

4. To inclose; to invest.

That soldier, that man of iron,

Whom ribs of horror all environ