jurisdictionyoudaoicibaDictYouDict
jurisdiction: see judge
jurisdiction (n.)youdaoicibaDictYouDict
early 14c. "administration of justice" (attested from mid-13c. in Anglo-Latin), from Old French juridiccion (13c.) and directly from Latin iurisdictionem (nominative iurisdictio) "administration of justice, jurisdiction," from ius (genitive iuris; see jurist) "right, law" + dictio "a saying" (see diction). Meaning "extent or range of administrative power" is from late 14c. Related: Jurisdictional.
jurisprudence (n.)youdaoicibaDictYouDict
1620s, "knowledge of law," from French jurisprudence (17c.) and directly from Late Latin iurisprudentia "the science of law," from iuris "of right, of law" (genitive of ius; see jurist) + prudentia "knowledge, a foreseeing" (see prudence). Meaning "the philosophy of law" is first attested 1756. Related: Jurisprudential.
jurist (n.)youdaoicibaDictYouDict
mid-15c., "one who practices law," from Middle French juriste (14c.), from Medieval Latin iurista "jurist," from Latin ius (genitive iuris) "law," from PIE *yewes- "law," originally a term of religious cult, perhaps meaning "sacred formula" (compare Latin iurare "to pronounce a ritual formula," Vedic yos "health," Avestan yaoz-da- "make ritually pure," Irish huisse "just").

The Germanic root represented by Old English æ "custom, law," Old High German ewa, German Ehe "marriage," though sometimes associated with this group, seems rather to belong to PIE *ei- "to go." Meaning "a legal writer" is from 1620s.
sui jurisyoudaoicibaDictYouDict
1610s, "of full legal age and capacity," in ancient Rome, "of the status of one not subject to the patria potestas." For first element, see sui generis; for second element, see jurist.
jurisconsultyoudaoicibaDictYouDict
"An expert on law", Early 17th century: from Latin jurisconsultus, from jus, jur- 'law' + consultus 'skilled' (from consulere 'take counsel').