I want to understand a diploma text:
DIPLOMA
QVOD DEVS OPTIME VERTAT
EX LEGIBVSVNIVERSITATIS JYVÄSKYLÄENSIS
ATQVE EX DECRETO
FACVLTATIS (…)
If I consider Diploma as a title and Quod Deus optime vertat a subtitle (not grammatically tied to following text), I can parse the sentence starting ex legibus universitatis Jyväskyläensis atque ex decreto facultatis…: "by the rules of the University of Jyväskylä and by the decision of the faculty…". The rest of the diploma makes sense as a sentence.
The real question is, what does quod Deus optime vertat mean? The reason for giving additional context is that it might somehow be part of the sentence that the rest of the diploma forms. I assume it is a separate "slogan", but there is no punctuation whatsoever and the layout does not give clear syntactical clues. (If the second line is grammatically entirely separate from the third one, I will recommend to the university that a blank line be added in between for clarity.)
My best guess is that the second line means simply "May God bring success", and a separate sentence starts at the beginning of the third line. I would like to be sure.
Here is the full text for a female graduating as a Master of Psychology (with the added empty row if my suspicion is correct). Feel free to skip; this is just additional background information for the curious.
DIPLOMA
QVOD DEVS OPTIME VERTAT
EX LEGIBVS
VNIVERSITATIS JYVÄSKYLÄENSIS
ATQVE EX DECRETO
AMPLISSIMAE RERVM CIVILIVM IN EA VNIVERSITATE FACVLTATIS
ABSOLVTO OMNI SPECIMINE LEGITIMOARTIS PSYCHOLOGICAE MAGISTRA
CREATVR OMNIBVSQVE HVIVS DIGNITATIS IVRIBVS PRIVILEGIISQVE ORNATVR
IN VRBE JYVÄSKYLÄ
IDIBVS AVGVSTIS ANNO MMXVI
FEMINA PRAECLARISSIMA<insert name of student>
ARTIS PSYCHOLOGICAE CANDIDATA
QVOD FACTVM
NOMINE MEO SVBSCRIPTO ET SIGILLO VNIVERSITATIS ADFIXO
EGO CONFIRMO
LEGITIME CONSTITVTVS PROMOTOR<insert name of conferrer of degrees>
Quick English translation (as it seems to me) of the whole thing:
Diploma
May God bring success
By the rules
of the University of Jyväskylä
and by the decision
of the great faculty of social sciences
after the completion of all due examsthe exceptional lady
Bachelor of Psychology<insert name of student>
is promoted to
Master of Psychology
and is equipped with all rights, privileges and insignia of this status
in the city of Jyväskylä
on August 13, 2016which I confirm by my signature and the seal of the university
as the legitimately appointed conferrer of degrees<insert name of conferrer of degrees>