You're correct - "mummy" or "mumia" was originally used to describe the resin created by human remains and embalming materials, but by the 18th century it had s

You're correct - "mummy" or "mumia" was originally used to describe the resin created by human remains and embalming materials, but by the 18th century it had started to shift over to describing various kinds of hydrocarbons. I think it was because the two actually looked fairly similar - black, resin-y, bituminous, etc.