Same entry, according to Adler, in the unedited Laurentianus 59.16.
The headword (which must be quoted from somewhere) is imperfect indicative active, third person singular, of the verb xati/zw ('I lack'), here with nu-moveable. The verb is attested in Greek of all periods in the present tense, but it occurs in the imperfect only in the Byzantine historian Nicetas Choniates' History (460.6: also indicative active, third person singular, with nu-moveable).