Welsh edit

Etymology edit

From perthynas +‎ -edd.

Noun edit

perthnasedd m (usually uncountable, plural perthnaseddau)

  1. relevance
  2. relativity
  3. (physics) relativity

Derived terms edit

Mutation edit

Welsh mutation
radical soft nasal aspirate
perthnasedd berthnasedd mherthnasedd pherthnasedd
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.