islay
Islay (name) means the southernmost of the Inner Hebrides islands, situated in the Argyll and Bute council area of Scotland.
Etymology
Derived from Scottish Gaelic Ìle, but probably ultimately of non-Indo-European (substrate) origin, along with other uncertain names in Scotland such as Skye, Lewis, and Arran. Watson (1926) hinted that a Proto-Brythonic/Proto-Celtic root connected to Gaulish *ilio (“flank, buttock”) or Welsh ilio (“to ferment”) might be behind the name. The silent s in this word, as in island, is due to an unetymological association with isle.