(ن) خَلَدَ يَخْلُدُ خُلُوْدًاkhalada yakhludu khulūdan: to remain for a long time in one state without any change. ﴿ذٰلِكَ يَوْمُ الْخُلُوْدِ﴾ (Qāf 50:34)
خَالِدٌkhālid pl. خٰلِدُوْنَkhālidūna (active participle, ism fāʿil): one who abides forever. ﴿هُمْ فِيْهَا خٰلِدُوْنَ﴾ (Al-Baqarah 2:39)
خُلْدٌkhuld (noun, ism dhāt): perpetuity, eternity. ﴿قُلْ اَذٰلِكَ خَيْرٌ اَمْ جَنَّةُ الْخُلْدِ﴾ (Al-Furqān 25:15)
Form IV (ifʿāl) اَخْلَدَ يُخْلِدُ اِخْلَادًاakhlada yukhlidu ikhlādan: to incline towards something permanently; to keep forever. ﴿وَلٰكِنَّهُۥٓ اَخْلَدَ اِلَي الْاَرْضِ﴾ (Al-Aʿrāf 7:176); ﴿يَحْسَبُ اَنَّ مَالَهُۥٓ اَخْلَدَهُۥ﴾ (Al-Humazah 104:3)
Form II (tafʿīl): مُخَلَّدٌmukhallad (passive participle, ism mafʿūl): kept forever in one state, made eternal. ﴿وِلْدَانٌ مُّخَلَّدُوْنَ﴾ (Al-Wāqiʿah 56:17)