Island, river-meadow. Written Inish, Inis, Ennis, Inch — the same Irish word, inis, in the spellings English gave it.
Island, river-meadow: it is the Irish inis. It is written Inish, Inis, Ennis, Inch in English spellings of Irish names.
inis. English spellings of the same word include Inish, Inis, Ennis, Inch, because the names were written down by ear.
Enniscorthy (Inis Córthaidh), Ennis (Inis), Enniskillen (Inis Ceithleann).