from 5424; thoughtful, i.e. sagacious or discreet (implying a cautious character; while 4680 denotes practical skill or acumen; and 4908 indicates rather intelligence or mental acquirement); in a bad sense conceited (also in the comparative):

KJV-- wise (-r).

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5424 phren (frane);

probably from an obsolete phrao (to rein in or curb; compare 5420); 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-- understanding.