ETYMOLOGY
from Latin festivus (festive), from festum (a feast) + -ous
EXAMPLE
“… But goe on boldly, Frestons charmes must end,
See here, a Disinchanter is thy friend;
Who innocent black Art, hath round thee writ
A magick circle of Festivous Wit;
Which will secure thy Fame against that Prime,
And lasting monster, all devouring Time. …”
From: John Speed in Edmund Gayton’s Pleasant Notes Upon Don Quixot, 1654
Lexicophilia 