राख (Hindi) comes from Old Marathi 𑘨𑘰𑘏, from Prakrit 𑀭𑀓𑁆𑀔𑀸, from Sanskrit रक्षा, from Sanskrit रक्ष्, from Proto-Indo-Aryan Hrakṣ-, from Proto-Indo-Iranian Hrakš-, from Proto-Indo-European h₂lek- — to protect.
राख (Hindi): ash, ashes