Root ل ه ب(l h b) has 2 unique word forms and appears 3 times in the Quran.

English gloss Burn, Blaze, Kindle, Ignite, Catch Fire, Inflamed

Word Translation Occurrences
لَهَبٖ Blazing Flames, Lahab, Blazing Flames, Lahab 4
ٱللَّهَبِ the flame, the flame 2