Root ل ج ج(l j j) has 4 unique word forms and appears 4 times in the Quran.

Word Translation Occurrences
لُجَّةٗ (was) a pool, (was) a pool 2
لَّجُّواْ they persist, they persist 2
لُّجِّيّٖ deep, deep 2
لَّلَجُّواْ surely they would persist, surely they would persist 2