What's the difference between authoritative and potestative?

Authoritative

Definition:

(a.) Having, or proceeding from, due authority; entitled to obedience, credit, or acceptance; determinate; commanding.
(a.) Having an air of authority; positive; dictatorial; peremptory; as, an authoritative tone.

Example Sentences:

(1) Alongside that we want authoritative figures for the future."
(2) Authoritative guidelines are needed to guide clinical practice and to evaluate research.
(3) magazine is planning, for the first time in its 54-year history, an authoritative guide to British universities.
(4) Given the pressure on MP’s time, they tend to specialise on one or two countries if they pay any great attention to foreign affairs – only a very few, like the excellent Mike Gapes, can talk authoritatively about foreign policy across the piece.
(5) "I believe Australians have a right to know, a right to authoritative, independent and accurate information on climate change," Flannery told a press conference in Melbourne.
(6) The most authoritative account of Mitchell's side of his confrontation with the police was published by the Sunday Telegraph .
(7) The government wanted unclassified but authoritative intelligence material to advance its position.
(8) These people would make the US government’s authoritative count of people killed by police.
(9) As these are now being finalized and not yet approved for release, INR can only highlight the contents of this concise, authoritative document, which should become an indispensable handbook on AIDS for nurses and other health personnel when available.
(10) Liberal Democrat MP Andrew George, on the health select committee, told the BBC: "Most of the informed and authoritative commentators on this all agree this might result in a race to the bottom, and it certainly will.
(11) Human Rights Watch argued that “this authoritative report rightly condemns the horrific patterns of torture, arbitrary detention, and indefinite conscription that are prompting so many Eritreans to flee their country”.
(12) Nice describes itself as follows: “We provide independent, authoritative and evidence-based guidance on the most effective ways to prevent, diagnose and treat disease and ill health …” The medical profession should thus expect Nice to base its findings on full data disclosure and independently evaluated cost-benefit of statins.
(13) Neumann, the author of an authoritative study comparing prison regimes for terrorist prisoners in 15 countries, said there was a trade-off involved but he thought the current British dispersal system was probably the best way of tackling the issue.
(14) Led by Commander Steve Rodhouse, Operation Connect is trawling the Scotland Yard intelligence bank, and information from local authorities, schools and health authorites, to produce a centralised database of the most harmful gang members.
(15) There is no authoritative way to assess a government's record and, I guess, more time needs to pass for me fully to digest the history of the Labour years.
(16) This is the first of five reports on the nature and uses of PET that have been prepared for the American Medical Association's Council on Scientific Affairs by an authoritative panel.
(17) The purpose is to assist busy practitioners, students, researchers, or scholars to stay abreast of these items of progress in radiology that have recently achieved a substantial degree of authoritative acceptance.
(18) Islamic State (Isis), Syrian government forces, both sides in the conflict in eastern Ukraine and Saudi jets attacking targets in Yemen have all used cluster bombs and rockets banned by international treaty, according to an authoritative new report .
(19) The Perugia Division of Cancer Research (DCR) owes much to HLS because he was always ready with advice and help of every nature and because the Perugia Quadrennial International Conferences on Cancer (PQICC) had their beginning through his will and always enjoyed his authoritative approval and aid.
(20) The PSIS is a 68-item Likert-type questionnaire which asks patients to specify the skills which they believe belong to the psychiatrist's authoritative domain.