IPA: /ˌɑːrkɪˈpɛlədʒɪk/
KK: /ˌɑr.kɪˈpɛl.ə.dʒɪk/
Relating to a group of islands or an archipelago.
The archipelagic region is known for its diverse marine life.
Archipelagic → It is formed from "archi-" (from Greek "archi-", meaning chief or principal) and "pelagos" (from Greek "pelagos", meaning sea). The word "archipelagic" refers to something related to a group of islands in the sea, emphasizing the principal or chief nature of the islands in a particular sea area.
Think of 'chief' or 'principal' ('archi-') islands in the 'sea' ('pelagos') — that's what archipelagic means.