Aint vs Ait - What's the difference?

As a contraction aint

is misspelling of ain't|lang=en.

an island in a river, especially the River Thames in England.

(en-cont)

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(wikipedia ait) (en noun)

An island in a river, especially the River Thames in England.

* R. Hodges (1649)

The ait where the osiers grew.

* 1833 , , Autobiography: Truth and Fiction Relating to My Life trans. John Oxenford, book 9,

Striking richness of vegetation which follows in the windings of the Rhine, marks its banks, islands, and aits .

* 1853 , , Bleak House , ch. 1,

Fog everywhere. Fog up the river, where it flows among green aits and meadows.

(Scotland) An oat.

(Burns)

* eyot

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