From the Greek name
Αλθαια (Althaia), perhaps related to Greek
αλθος (althos) "healing". In Greek myth she was the mother of Meleager. Soon after her son was born she was told that he would die as soon as a piece of wood that was burning on her fire was fully consumed. She immediately extinguished the piece of wood and sealed it in a chest, but in a fit of rage many years later she took it out and set it alight, thereby killing her son.
There were no related names found for Althea.