Arenation

Arenation is an uncommon kind of therapeutic dry bath, using hot sand. At various times it has been described as "applied", sprinkled upon a patient, or putting the feet in the hot sand. The term is from the Latin arenatio, from arena, "sand".

References

• Webster's 1828 Dictionary
•  This article incorporates text from a publication now in the public domain: 

[1]