Embalm

[Jessica]

To anoint all over with balm; especially, to preserve
from decay by means of balm or other aromatic oils, or spices; to fill
or impregnate (a dead body), with aromatics and drugs that it may
resist putrefaction.

[Sonia]

Preserve (a corpse) from decay, originally with spices and now usually by arterial injection of a preservative.