4 IRISH
The old names of the letters were tree-names: ailm “elm”,
beith “birch”, coll “hazel”, dair “oak”, edad “aspen”, fern
“alder”, gort “ivy”, idad “yew”, luis “mountain-ash”,
muin “vine”(?), nin “ash”, onn “gorse”, pin(?), ruis “elder”,
sail “willow”, tinne “holly”, úr “blackthorn”.
These names are no longer used, and the names are as in
English except for a, which is named as it is pronounced.
Three important points which affect spelling may be
introduced here.
(i) Every consonant has two qualities, velar and palatal,
called “broad” and “slender” respectively; and these
qualities are marked in spelling by means of glide-vowels.
The consonant is “broad” when it precedes (or follows) a
“broad” vowel, (a, o, u). It is “slender” when it precedes
(or follows) a “slender” vowel (e, i). When a consonant is
between vowels, the following vowel predominates and a
slender vowel is inserted before a slender consonant, a
broad vowel before a broad consonant. Thus the flanking
vowels will always agree, slender with slender and broad
with broad (“caol le cool agus leathan le leathan”).
(ii) The consonants p, t, c, b. d, g, m, f, s are liable to a
change called aspiration, which turns them into spirants.
This change is written by adding h in roman and by adding a
dot in Gaelic type: bh.
, dh , gh , and so on.
1
(iii) The consonants p, t, c, f and b, d, g are liable to a
change called eclipsis, which makes the voiceless consonants
voiced, and the voiced consonants nasal. Thus p, t, c, f
become b, d, g, v (written bh) respectively, and b, d, g
become m, n, ng. But the original consonant is kept in
spelling, and the eclipsis is written before it: bp, dt, gc,
bhf, mb, nd, ng.
The rules for aspiration and eclipsis are given below.
The contrast of sound between broad and slender may be
illustrated in English by the following pairs:
1
For the pronunciation see p. 9.