فِى لَوْحٍۢ مَّحْفُوظٍۭ
Sentence structure
فِى لَوْحٍ continues the description of the Quran: فِى governs لَوْحٍ, and مَّحْفُوظٍۭ is its matching genitive adjective.
Ayah summary
It is written in the Preserved Tablet and safeguarded from every alteration.
فِى — In
Grammar: A preposition governing لَوْحٍۢ; the phrase continues the description of the Quran.
لَوْحٍۢ — a Tablet
Grammar: An indefinite masculine-singular genitive noun after فِى.
مَّحْفُوظٍۭ — Guarded
Grammar: An indefinite masculine-singular genitive passive participle functioning as the adjective of لَوْحٍۢ.