ETYMOLOGY
from Anglo-Norman delitous, Middle French deliteux;
from delit (delight) + ‑ous
EXAMPLE
“… For sich solace sich ioie and play
I trowe that neuere man ne say
As was in that place delytous
The gardeyn was not daungerous
To herberwe briddes many oon
So riche a yeer was neuer noon …”
From: The Romaunt of the Rose
By Guillaume de Lorris and Jean de Meun
Translated by Geoffrey Chaucer, a1425
Lexicophilia 