26. Stems in k or q: G. nathair, g. nathrach, so làir, lasair, cathair, etc.
27. Neuter stems in ‑es: teach, leth, magh, gleann.
28. Comparative stems in ‑jes, ‑is‑, jos: mò, greater *mâ-jôs, sine, Skr. san-yas‑.
Adair in tughadair, dialladair, figheadair, breabadair, etc. (?)
Two or three stems peculiar to Gaelic may be mentioned. Adjectives in ‑idh, O. Ir. ‑de, as diadhaidh, come from an original ‑dio‑. Endings like maireann, firionn have been correlated with the Lat. gerund, itself a much disputed form. The preserved d in words like flichead, moisture, O. Ir. fliuchaidatu, has been variously referred to *‑antu- or ‑ato-tût; possibly the latter is its origin.
III. Synopsis of Gadelic accidence.
A. Declension.
1. o-stems. Masc. o-stem ball, member.
| Gaelic. | Old Irish. | Gadelic. | |
| Sing. Nom. | ball | ball | ballos |
| Gen. | buill | baill | baill |
| Dat. | ball | baull | ballū (ballōj. Jub.) |
| Acc. | ball | ball n‑ | ballon |
| Voc. | bhuill | baill | balle |
| Dual N., A. | dà bhall | dá ball | ballō |
| G. | dà bhuill (?) | ||
| D. | dà bhall | dib mballaib | ballobin |
| Plur. Nom. | buill | baill | ballī (balloi) |
| G. | ball | ball n- | ballon |
| D. | ballaibh | ballaib | ballobis |
| A. | buill | baullu | ballōs (balons) |
| V. | bhalla | baullu | ballōs |
Neuter io-stem cridhe, heart
| S. N., A. | cridhe | cride n- | kridion |
| G. | cridhe | cridi | kridiī |
| D. | cridhe | cridiu | kridiu |
| V. | chridhe | cride n- | kridion |
| Pl. N., A. | cridheachan | cride | kridia |
| G. | cridheachan | cride n- | kridion |
| D. | cridheachan | cridib | kridiobis |
| V. | chridheachan | chride | kridia |
