D defs.my
Entry 1 sense Webster, 1913

Envelop

/ĕn-vĕlʹəp/ · En·vel·op · IPA /ɛnˈvɛləp/
01 v. t. To put a covering about; to wrap up or in; to inclose within a case, wrapper, integument or the like; to surround entirely; as, to envelop …
imp. & p. p. Enveloped; p. pr. & vb. n. Enveloping
  1. 1.
    To put a covering about; to wrap up or in; to inclose within a case, wrapper, integument or the like; to surround entirely; as, to envelop goods or a letter; the fog envelops a ship.
    “Nocturnal shades this world envelop.” — J. Philips.