aureate
Golden in color or shine.
O wynd of grace, now blowe into my saile, / O auriat lycour of Clyo, for to wryte / Mi penne enspire of that I wold endyte.
Of language: characterized by the use of (excessively) ornamental or grandiose terms, often of Latin or French origin.
It may, then, be said that aureate terms were those new words, chiefly Romance or Latinical in origin, continually sought, under authority of criticism and the best writers, for a rich and expressive style in English, from about 1350 to about 1530.
Where it comes from
Borrowed from Latin aureatus (“adorned or decorated with gold”). Equivalent to Latin aureus (“golden, gilded”) + -ate (adjective-forming suffix).
Adapted from the Wiktionary entry aureate (CC BY-SA 4.0).