تَقْوَا

A word in the Arabic language will either be 1) a verb or 2) a noun or 3) a particle – تَقْوَا is a noun

A noun may either be 1) Definite or indefinite 2) Masculine or feminine 3) Singular, dual or plural 4) Nominative, accusative or genitive

التَّقْوَى is the natural state of this definite noun and remains التَّقْوَى even though it is in the accusative case due to it being the: 1) المَفْعُوْلُ بِهِ object of a verb or 2) اسْمُ of إِنَّ or 3) خَبَرُ of كَانَ or 4) المَفْعُوْلُ فِيْهِ adverb of time or place or 5) المَفْعُوْلُ لَهُ noun that gives the reason for doing a thing or 6) المَفْعُوْلُ مَعَهُ noun that comes after the و which means “along with” or 7) المَفْعُوْلُ المُطْلَقُ is the مَصْدَرٌ of the verb occurring in the sentence or 8) الحَالُ adverb of manner or 9) التَّمْيِيْزُ noun that specifies the meaning of a vague word or 10) المُسْتَثْنَى noun that comes after إِلَّا meaning “except” or 11) المُنَادَى noun of calling

because the third radical in الهُدَى is a weak letter (و or ي) weak letters do not show their endings, their endings have to be estimated (deduced by reason)

التَّقْوَى loses it’s definite article and it’s third radical changes from ى to ا , becoming تَقْوَا due to it being a possessed noun

Protection, Warding off evil, Observing duty, Abstainment, Observing the Divine ordinances in every walk of life

To protect, save, preserve, ward off, guard against evil and calamity, be secure, take as a shield, regard the duty

Grammatical analysis of تَقْوَا
اسْمٌ مَنْصُوْبٌ بِالفَتْحَةِ المُقَدَّرَةِ
مَعْرِفَةٌمُفْرَدٌمُذَكَّرٌمَجْرُوْرٌو ق يبَاب اِفْتِعَالٌفَعْلَىاتَّقَى يَتَّقِياسْمٌالْمَصْدَرُ
DefiniteSingularMasculineGenitiveRootPiety/RighteousnessPatternForm 8NounVerbal noun
Surah/Below are the 2+2 verses in the holy Quran consisting of the genitive nounتَقْوَا
Verse
 then is one who founded his building on fear of Allah (SWT) and His pleasureأَفَمَنْ أَسَّسَ بُنْيَانَهُ عَلَى تَقْوَى مِنَ اللهِ وَرِضْوَانٍ
 better or who founded his building on the edge of a cliff about to collapse so, it collapsed with him (in it)خَيْرٌ أَم مَّنْ أَسَّسَ بُنْيَانَهُ عَلَى شَفَا جُرُفٍ هَارٍ فَانْهَارَ بِهِ
9-109in the fire of Hell and Allah (SWT) does not guide the wrongdoing peopleفِيْ نَارِ جَهَنَّمَ وَاللهُ لَا يَهْدِي القَوْمَ الظَّالِمِيْنَ
22-32
47-17
91-8then He inspired it about its wickedness and its righteousnessفَأَلْهَمَهَا فُجُوْرَهَا وَتَقْوَاهَا