Valentia, or VALENCIA, a small island off County Kerry, 5 miles long by 2 broad. In some parts fairly good in soil, it has much rocky moorland, and cliffs nearly 900 feet high at the north end. The islet is chiefly notable as the European terminus of more than one Atlantic Telegraph (q.v.). The name, long held to prove that a colony from Valencia in Spain had settled here, is most likely corrupted from the Irish Val-inch or Fail-ins.
Valentia
Chambers's Encyclopaedia, Volume 10: Swastika to Zyrianovsk and Index, p. 417
Source scan(s): p. 0442