The root ل و ح (l-w-ḥ) in the Quran

وَكَتَبْنَا لَهُۥ فِى ٱلْأَلْوَاحِ مِن كُلِّ شَىْءٍ مَّوْعِظَةً وَتَفْصِيلًا لِّكُلِّ شَىْءٍ فَخُذْهَا بِقُوَّةٍ وَأْمُرْ قَوْمَكَ يَأْخُذُوا۟ بِأَحْسَنِهَا سَأُو۟رِيكُمْ دَارَ ٱلْفَٰسِقِينَ ۝١٤٥

And We wrote for him on the tablets [something] of all things - instruction and explanation for all things, [saying], "Take them with determination and order your people to take the best of it. I will show you the home of the defiantly disobedient."

وَلَمَّا رَجَعَ مُوسَىٰٓ إِلَىٰ قَوْمِهِۦ غَضْبَٰنَ أَسِفًا قَالَ بِئْسَمَا خَلَفْتُمُونِى مِنۢ بَعْدِىٓ أَعَجِلْتُمْ أَمْرَ رَبِّكُمْ وَأَلْقَى ٱلْأَلْوَاحَ وَأَخَذَ بِرَأْسِ أَخِيهِ يَجُرُّهُۥٓ إِلَيْهِ قَالَ ٱبْنَ أُمَّ إِنَّ ٱلْقَوْمَ ٱسْتَضْعَفُونِى وَكَادُوا۟ يَقْتُلُونَنِى فَلَا تُشْمِتْ بِىَ ٱلْأَعْدَآءَ وَلَا تَجْعَلْنِى مَعَ ٱلْقَوْمِ ٱلظَّٰلِمِينَ ۝١٥٠

And when Moses returned to his people, angry and grieved, he said, "How wretched is that by which you have replaced me after [my departure]. Were you impatient over the matter of your Lord?" And he threw down the tablets and seized his brother by [the hair of] his head, pulling him toward him. [Aaron] said, "O son of my mother, indeed the people overpowered me and were about to kill me, so let not the enemies rejoice over me and do not place me among the wrongdoing people."

وَلَمَّا سَكَتَ عَن مُّوسَى ٱلْغَضَبُ أَخَذَ ٱلْأَلْوَاحَ وَفِى نُسْخَتِهَا هُدًى وَرَحْمَةٌ لِّلَّذِينَ هُمْ لِرَبِّهِمْ يَرْهَبُونَ ۝١٥٤

And when the anger subsided in Moses, he took up the tablets; and in their inscription was guidance and mercy for those who are fearful of their Lord.

وَحَمَلْنَٰهُ عَلَىٰ ذَاتِ أَلْوَٰحٍ وَدُسُرٍ ۝١٣

And We carried him on a [construction of] planks and nails,

لَوَّاحَةٌ لِّلْبَشَرِ ۝٢٩

Altering [i.e., blackening] the skins.

فِى لَوْحٍ مَّحْفُوظٍۭ ۝٢٢

[Inscribed] in a Preserved Slate.