Kathedeisthai. kai Kathedountai, kathesthêsontai.
See
Hesychius, kappa96, with the same gloss for
καθεδοῦνται .
The headword is the future infinitive of the verb
καθέζομαι ; the second verb is the third person plural future. Both words suggest a biblical lemma: the headword may be connected with Jeremiah 37.18
κατεδεῖται , and the gloss quotes Ezechiel 26.16.