in English is:

deafness

Mutations

Soft:fyddariaeth
Nasal:myddariaeth
Aspirate:(no mutation)

Use

y fyddariaeth hon
fy myddariaeth i
dy fyddariaeth di
ei fyddariaeth ef/o
ei byddariaeth hi
ein byddariaeth ni
eich byddariaeth chi
eu byddariaeth nhw/hwy
External

Dictionary Portal

This is a library of dictionaries and other online resources where you can search further for byddariaeth*:

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.