isles off Cornwall, of unknown origin. Pliny has Silumnus, Silimnis. Perhaps connected with the Roman god Sulis (cf. Aquae sulis "Bath"). The -y might be Old Norse ey "island" The -c- added 16c.-17c. "[A]bout the only certain thing that can be said is that the c of the modern spelling is not original but was added for distinction from ModE silly as this word developed in meaning from 'happy, blissful' to 'foolish.'" [Victor Watts, "Cambridge Dictionary of English Place-Names," 2004].
Outwardly, things looked all right; there was the cable attached at Land's End, and here was its other end at scilly.
It was natural that Tresco should become the ecclesiastical centre of scilly.
It is frequently stated, as a reason for its equable climate, that scilly lies right in the course of the Gulf Stream.
Industrially, we chiefly think of scilly in connection with flowers.
A turtle weighing a ton has been caught off the scilly Isles.
"scilly people," piped a shrill female voice from our midst.
In scilly, however, there is more sunshine and less rain than on the mainland.
It was on the 5th of December that we sighted the scilly Isles.
Like climatic conditions and a like industry account for the 2,000 souls living on the inhabited islands of the scilly group.
The fine weather continued until she had got clear of scilly.