مَهْمَهُ سِرْبَاخٌ

A desert, or waterless desert, wide, or spacious, (K, TA,) in the sides: (TA:) and ↓ مَهْمَهٌ مُسَرْبَخٌ a desert, or waterless desert, far extending, (K, * TA,) wide, or spacious: so in a verse of Aboo-Duwád cited voce مَرْدُونٌ, q. v. (TA.)