IPA: /ˌɛp.ɪˈzɛdʒ.ɪ.tɪk/
KK: /ɛpɪˈzɛdʒɪtɪk/
Relating to or serving as an explanation or clarification of something, often used in the context of language or literature.
The author's epexegetic remarks helped clarify the complex themes in the novel.
Epexegetic is formed from "epi-" (meaning upon or in addition) and "exēgēsis" (from Greek, meaning explanation or interpretation). The term refers to something that provides additional explanation or clarification.
Think of 'upon' ('epi-') adding more 'explanation' ('exēgēsis') to something — that's why epexegetic means providing extra clarification.