Judaism, Christianity and Islam
[5]
See Webster's, p.1153 for "substratum": "[ML fr. L neuter of substratus, pp of substernere to spread under ...] the material of which something is made and from which IT DERIVES ITS SPECIAL QUALITIES; a layer beneath the surface soil" (emphasis and italics added)
War against Hinduism. By Stephen Knapp
Aryan invasion a laughing stock. By David Frawley