Correct spelling for the English word "alumed" is [ɐlˈuːmd], [ɐlˈuːmd], [ɐ_l_ˈuː_m_d] (IPA phonetic alphabet).
"Alumed" is not a recognized word in the English language. It does not have an established dictionary definition.
Imbued or mixed with alum.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.