*दराकार (Sanskrit) comes from Sanskrit दर, from Proto-Indo-Aryan d(ʰ)wā́r, from Proto-Indo-Iranian dʰwā́r, from Proto-Indo-European dʰwṓr, from Proto-Indo-European dʰwer- — door.
Ancestry of “*दराकार”, step by step
*दराकार traces back through two separate lines of ancestry.