Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

1. ^Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “penn”, ineDIL: Electronic Dictionary of the Irish Language
2. ^Sjoestedt, M. L. (1931),Phonétique d’un parler irlandais de Kerry [Phonetics of an Irish Dialect of Kerry] (in French), Paris: Librairie Ernest Leroux,§ 321, page161
3. ^de Bhaldraithe, Tomás (1977),Gaeilge Chois Fhairrge: An Deilbhíocht [The Irish of Cois Fharraige: Accidence] (in Irish), 2nd edition, Institiúid Ard-Léinn Bhaile Átha Cliath[Dublin Institute for Advanced Studies], section 48, page20
4. ^Mhac an Fhailigh, Éamonn (1968),The Irish of Erris, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, section 53, page14
5. ^Quiggin, E. C. (1906),A Dialect of Donegal, Cambridge University Press,§ 365, page124

^✝ obsolete form, used until the 19th century

1. ^Ladefoged, Jenny; Ladefoged, Peter; Turk, Alice; Hind, Kevin (5 February 1996), “Word List for Scottish Gaelic (Great Bernera, Lewis, Outer Hebrides, Scotland)”, inThe UCLA Phonetics Lab Archive‎^[1], Los Angeles, CA: UCLA Department of Linguistics
2. ^Mac Gill-Fhinnein, Gordon (1966),Gàidhlig Uidhist a Deas, Dublin: Institiúid Ard-Léinn Bhaile Átha Cliath