Stem يَعْقِلُ has 2 unique word forms and appears 23 times in the Quran.

Word Translation Occurrences
يَعۡقِلُونَ (to) reason, (who) use reason, they reason, they understand, they use intellect, understand, use (their) intellect, use reason, who reason, who use intellect, who use reason, who use their intellect 42
يَعۡقِلُهَآ will understand them 2
يَعۡقِلُونَۚ understand 2