Appendix:Old Irish pronunciation

The charts below show the way in which the International Phonetic Alphabet (IPA) represents Old Irish pronunciations in Wiktionary entries.

See for detailed discussion of the phonology of Old Irish.

Some details of Old Irish phonetics are not known. may have been pronounced or, as in modern Irish. may have been the same sound as and/or. The vowels and  may have had backed allophones like  and  when they were preceded by a plain consonant (which happened only in unstressed syllables).

The precise articulation of the fortis sonorants, , , , , is unknown, but they were probably longer, tenser, and generally more strongly articulated than their lenis counterparts , , , , , , as in the Modern Irish dialects (e.g. Connacht Irish) that still possess a four-way distinction in the coronal nasals and laterals. and may have been pronounced  and  respectively. The difference between and  may have been that the former were trills while the latter were flaps.