in English is:

dusk

,

gloom

,

twilight

Mutations

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

Use

y gwyll hwn
fy ngwyll i
dy wyll di
ei wyll ef/o
ei gwyll hi
ein gwyll ni
eich gwyll chi
eu gwyll nhw/hwy
Phrases (2)
o wawr hyd wyll
rhwng gwyll a gwawl
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