ទ្វារ (Khmer) comes from Pali dvāra, 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.
ទ្វារ (Khmer): door; entrance; opening; gate