Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Hindi ख़्वाब
← Persian خواب (borrowed)
← Hindi सपना (doublet)
← Proto-Indo-Iranian *swap- (root)
← Proto-Indo-European *swep- (root)
← Proto-Iranian *hwap- (root)
← Middle Persian 𐭧𐭥𐭠𐭡 (derived)

→ Hindi सपना (doublet)