From Wiktionary, the free dictionary
Borrowed from Ahom 𑜉𑜩𑜓𑜝𑜪 (maydlaṃ, “graveyard”).
maidam (plural maidams)
- (historical) A tumulus, divided into vaults and chambers, in which the royalty and aristocracy of the medieval Ahom Kingdom (1228–1826) were buried.