Noah Webster
Environ
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