IPA: /ˌdʒʊərɪsˈdɪkʃənl/
KK: /ˌdʒɜrɪsˈdɪkʃənl/
Relating to the official power to make legal decisions and judgments.
The court has jurisdictional authority over this case.
Jurisdictional → It is formed from "jus" (from Latin *jus*, meaning law) and "dictio" (from Latin *dictio*, meaning saying or declaration) combined with the suffix "-al" (meaning relating to). The word "jurisdictional" refers to matters relating to the authority to make legal decisions and judgments.
Think of 'law' ('jus') and 'saying' or 'declaring' ('dictio') to remember that 'jurisdictional' relates to the authority to declare or enforce laws.