The lemma uses the perfect indicative active, third person singular, of the verb kaqi/sthmi, I set down, set in order, stand calm); see generally LSJ s.v. The phrase is evidently extracted from somewhere -- perhaps Epiphanius, Panarion 3.87.13 (Holl), which is the first attested instance of the negative particle ou) preceding the headword verb.
[1] The first gloss uses the present indicative active, third person singular, of the verb nh/fw, I am sober, I drink no wine; see generally LSJ s.v. The second gloss is the present indicative, third person singular, of the verb mai/nomai (I rave, rage, am mad); see LSJ s.v. The headword is identically glossed in the Synagoge, Photius' Lexicon (omicron629 Theodoridis), and Lexica Segueriana 322.7.