ETYMOLOGY
from Latin grandævus (aged) + -al
EXAMPLE
“… But you are so mightily taken with your own performance, that to increase admiration, and for the bringing in a phrase or sentence out of Proclus, you could not with-hold from telling us that you are but a young man, and so we easily beleeve it. But the more saucy boy you to be so bold with Reverend Mr. Aristotle, that grandevall Patriarch in points of Philosophy. For the second admonition, it is little more then a noise or clatter of words, or if you will, a meere rattle for a boy to play with. …”
From: Observations upon Anthroposophia theomagica, and Anima magica abscondita by Alazonomastix Philalethes
By Henry More, 1650
Lexicophilia 