An entry taken from the Lexicon Ambrosianum (Ambrosianus B12 sup. 51 and Laurentianus 59,16 fol.187r).
The headword is the perfect active participle, masculine nominative plural, of the verb a(gni/zw -- a verb frequently used in the imperial and Byzantine periods and also, sporadically, in classical writers. This perfect participle is quoted from the New Testament: 1 Peter 1.22 (web address 1 below); all other occurrences of it are quotations of this one.
[1] This gloss is the aorist participle of kaqai/rw. (In Hesychius eta78 it had been kaqari/santes, from kaqari/zw, with an analogous meaning.)