ث ج جth-j-j
(ن) ثَجَجَ يَثْجُجُthajaja yathjuju (original form) → ثَجَّ يَثُجُّ ثَجًّاthajja yathujju thajjan: to pour out or flow forcefully, to fall in torrents.
ثَجَّاجthajjāj (pattern فَعَّالfaʿʿāl, intensive form, ṣīghat al-mubālaghah): flowing with great force, torrential. Only once in the Quran: ﴿وَأَنْزَلْنَا مِنَ الْمُعْصِرَاتِ مَاءً ثَجَّاجًا﴾ (An-Nabaʾ 78:14)