وَٱلْأَرْضِ وَمَا طَحَىٰهَا
Sentence structure
وَٱلْأَرْضِ is a coordinated genitive oath noun. وَمَا coordinates a relative noun; طَحَىٰهَا is its relative clause with understood subject and attached object هَا.
Ayah summary
And by the earth and its wisely ordered expanse.
وَٱلْأَرْضِ — And the earth
Grammar: وَ coordinates, ٱل defines, and أَرْضِ is a feminine genitive oath noun.
وَمَا — and by (He) Who
Grammar: وَ coordinates and مَا is a relative noun whose clause follows.
طَحَىٰهَا — spread it
Grammar: A third-person masculine-singular perfect with understood subject and attached feminine-singular object هَا, forming the relative clause.