Noah Webster
Envelop
ENVEL'OP, verb transitive
1. To cover by wrapping of folding; to inwrap; to invest with a covering. Animal bodies are usually enveloped with skin; the merchant envelops goods with canvas; a letter is enveloped with paper.
2. To surround entirely; to cover on all sides; to hide. A ship was enveloped in fog; the troops were enveloped in dust.
3. To line; to cover on the inside.
His iron coat--enveloped with gold.
ENVEL'OP, noun A wrapper; an inclosing cover; an integument; as the envelop of a letter, or of the heart.
1. In fortification, a work of earth, in form of a parapet or of a small rampart with a parapet.