Webster’s Revised Unabridged Dictionary · 1913
Isle
Isle (īl), n. [Obs.] See Aisle.
Isle (īl), n. [OF. isle, F. île, L. insula; cf. Lith. sala. Cf. Insulate.]
1. An island. [Poetic]
Imperial rule of all the seagirt isles. Milton.
2. (Zoöl.) A spot within another of a different color, as upon the wings of some insects.
Isle, v. t. To cause to become an island, or like an island; to surround or encompass; to island. [Poetic]
Isled in sudden seas of light. Tennyson.