Reconstruction:Proto-Celtic/togyā

Etymology
From, ultimately from the root.

Noun

 * 1) covering
 * 2) roof

Reconstruction notes
The formation of the apparent Brittonic counterpart is complicated and uncertain. Schrijver states that hypothetically *togyā can directly phonetically yield, but Gordon points out that there are o-stem compound formations in Old Irish to account for (an o-stem formation can also yield the Brittonic forms, and without gender mismatch). Gordon hence reconstructs a primary o-stem to yield both the Old Irish o-stem formations and the Brittonic derivates, onto which  is further suffixed to create *togyā.