phren (Greek #5424)
the midrif (as a partition of the body), i.e. (figuratively and by implication, of sympathy) the feelings (or sensitive nature; by extension (also in the plural) the mind or cognitive faculties)
KJV usage: understanding.
Pronounce: frane
Origin: probably from an obsolete φράω (to rein in or curb; compare 5420)