I am, or was, trying to do an inline search with morph tags.   This is the word:  
†i. [כּוּן S3559, 3560 TWOT964 GK3922, 3923]218 vb. prob. be firm, only in der. conj.   Poʿlēl. orig. make firm;—
There is no Polel option in the morph search menu.   I didn't check for others, but I think there are others missing.  One of the Piel forms