Find the word definition

The Collaborative International Dictionary
eyet

Eyot \Ey"ot\ ([imac]"[o^]t or [=a]t), n. [Ey (AS. [=i]g or Icel. ey) + F. dim. termination -ot; cf. AS. [=i]geo[eth]. See Island, and cf. Ait.] A little island in a river or lake. See Ait. [Written also ait, ayt, ey, eyet, and eyght.]
--Blackstone.

Wiktionary
eyet

n. (alternative form of eyot English) (an island)