فَعَلٌ المَصْدَرُ

Original (Noun of action)/ الْمَصْدَرُ

فَعَلٌ is the abstract noun from the intransitive verb of the form فَعِلَ

If the middle radical of a verb can be pronounced with 2 or 3 vowels and its signification varies accordingly, the verb may have several abstract nouns, one for each form and meaning of the perfect

Surah/AyatSurah/AyatMeaningNoun
مَعْنَىاِسْمٌ
0-0Substituteالبَدَلُ
2-17Exampleمَثَلُ
2-17Exampleمَثَلِ 
2-19Beware / Precautionحَذَرَ
2-26Exampleمَثَلًا
To be gladفَرِحَJoyفَرَحٌ
To be sickمَرِضَSicknessمَرَضٌ
To be unable to see in the sunlightجَهِرَجَهَرٌ
To be high or prominentشَرِفَشَرَفٌ
To be afraidفَرِقَفَرَقٌ
2-41Priceثَمَنًا