in English is:

harmonium

Mutations

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

Use

yr harmoniwm hwn
fy harmoniwm i
dy harmoniwm di
ei harmoniwm ef/o
ei harmoniwm hi
ein harmoniwm ni
eich harmoniwm chi
eu harmoniwm nhw/hwy
External

Dictionary Portal

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

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.