(ض) هَدٰى يَهْدِيْ هُدًي وَهِدَايَةًhadā yahdī hudany wa-hidāyatan (original form: هَدَيَ يَهْدِيُhadaya yahdiyu): to guide, to show the way; three degrees of it have been described: (1) to explain the way (2) to open the heart to the way, to grant the ability to follow it (3) to bring to the destination. ﴿اِهْدِنَا الصِّرَاطَ الْمُسْتَقِيْمَ﴾ (Al-Fātiḥah 1:6)
هُدًيhudany (verbal noun, maṣdar, also a noun, ism dhāt): guidance. ﴿ذٰلِكَ الْكِتٰبُ لَا رَيْبَ فِيْهِ هُدًي لِّلْمُتَّقِيْنَ﴾ (Al-Baqarah 2:2)
هَادٍhād (active participle, ism fāʿil): guide. ﴿اِنَّمَآ اَنْتَ مُنْذِرٌ وَّلِكُلِّ قَوْمٍ هَادٍ﴾ (Ar-Raʿd 13:7)
هَدْيٌhady (noun, ism dhāt): the animal sent to the Kaʿbah for sacrifice. ﴿فَمَا اسْتَيْسَرَ مِنَ الْهَدْيِ﴾ (Al-Baqarah 2:196); ﴿هَدْيًۢا بٰلِغَ الْكَعْبَةِ﴾ (Al-Māʾidah 5:95)
هَدِيَّةٌhadiyyah (noun, ism dhāt): gift. ﴿وَاِنِّيْ مُرْسِلَةٌ اِلَيْهِمْ بِهَدِيَّةٍ﴾ (An-Naml 27:35)
Form VIII (iftiʿāl) اِهْتَدٰى يَهْتَدِيْ اِهْتِدَآءًihtadā yahtadī ihtidāʾan: to find guidance, i.e. the guidance a person obtains by his own choice; مُهْتَدٍmuhtad pl. مُهْتَدُوْنَmuhtadūna (active participle, ism fāʿil): one who finds guidance, rightly guided. ﴿فَمَنِ اهْتَدٰى فَاِنَّمَا يَهْتَدِيْ لِنَفْسِهِۦ﴾ (Yūnus 10:108); ﴿وَاُولٰٓئِكَ هُمُ الْمُهْتَدُوْنَ﴾ (Al-Baqarah 2:157)