earthhole

• earth-hole, earth hole

From Middle English eorthehole, equivalent to earth +‎ hole.

earthhole (plural earthholes)

1. A hole or cavern in the earth; a cave.
   • 1997, Elisabeth Kübler-Ross, Death:

     And because she lived — like hundreds of other families — in an earthhole — since all the houses were destroyed — she had nothing to give me.

• haloether