Gaelic Isoglosses

This page explores isoglosses found in modern varieties of Gaelic across Ireland, Scotland and the Isle of Man. It also explores historical developments in Gaelic according to each isogloss.

Tiuġ

Where some varieties of Gaelic have retained word-final /-uɣ/ in forms like ugh and tiugh, other varieties have shifted the fricative from a dorsal position to a labial position under the influence of the /u/, hence the /-uv/ in forms like ubh and tiubh.