From Proto-Indo-European *dyḗws (“sky, heaven, sky god”), in turn from *dyew- (“sky, heaven”). Cognate with Hittite 𒅆𒍑 (ši-us, “god”). Doublet of 𐤩𐤤𐤱𐤮 (lefs) and 𐤩𐤤𐤥𐤮 (lews)
𐤹𐤦𐤥𐤳 (ciwš)