Entries on قسو in 11 Arabic dictionaries by the authors Ibn Sīda al-Mursī, Al-Muḥkam wa-l-Muḥīṭ al-Aʿẓam, Habib Anthony Salmone, An Advanced Learner's Arabic-English Dictionary, Abu Ḥayyān al-Gharnāṭī, Tuḥfat al-Arīb bi-mā fī l-Qurʾān min al-Gharīb, and 8 more