Words that come from Proto-Iranian hwap-

5 words across 4 languages descend from Proto-Iranian hwap- — including خواب, رختخواب, خواب, ख़्वाब, 𐭧𐭥𐭠𐭡.

See the etymology of hwap- itself →

Persian (2)

Urdu (1)

Hindi (1)

Middle Persian (1)