This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
悓 combines 忄 (heart/mind) with 見 (see), but its exact historical development and original meaning are uncertain.
With a heart 忄 beside an eye 見, imagine trying to see into someone's heart or mind, but the meaning remains unclear.
For ケン, picture Ken (a friend) trying to peer into your thoughts: Ken -> ケン, as he looks 見 into your heart 忄.