- Judgment Day (Islam)2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Shamsīyah2
- Jānakīnātha Bhaṭṭācārya, active 16th century. Nyāyasiddhāntamañjarī2
- Knowledge, Theory of2
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)2
- Manuscript waste2
- Manuscripts, Medieval2
- Metaphysics2
- Muṭarrizī, Nāṣir ibn ʻAbd al-Sayyid, 1144-1213. Miṣbāḥ2
- Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar (Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī)2
- Perception (Philosophy)2
- Philosophy, Arab2
- Physics2
- Physics (Aristotle)2
- Predestination (Islam)2
- Purity, Ritual--Islam2
- Quadrants (Astronomical instruments)2
- Quṭb al-Taḥtānī, Muḥammad ibn Muḥammad, 1294 or 1295-1364 or 1365. Lawāmiʻ al-asrār fī sharḥ Maṭāliʻ al-anwār2
- Samarqandī, Abū al-Qāsim ibn Abī Bakr, active 15th century. Risālah al-Samarqandīyah2
- Sanskrit language--Etymology2