Manx edit

Etymology edit

From tree- (three) +‎ uillin (angle) + -agh.

Adjective edit

tree-uillinagh

  1. triangular
    Synonym: tree-corneilagh

Mutation edit

Manx mutation
Radical Lenition Eclipsis
tree-uillinagh hree-uillinagh dree-uillinagh
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.