ദ്വാരം (Malayalam) comes from Sanskrit द्वार, from Proto-Indo-Aryan dwā́ram, from Proto-Indo-Iranian dʰwā́ram, from Proto-Indo-European dʰwórom, from Proto-Indo-European dʰwor-, from Proto-Indo-European dʰwer- — door.
ദ്വാരം (Malayalam): a hole or door