in English is:

to darken

,

to blacken

,

to obscure

Mutations

Soft:dywyllu
Nasal:nhywyllu
Aspirate:thywyllu
Phrases (2)
tywyllu cyngor
tywyllu drws y tŷ
External

Dictionary Portal

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

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.