in English is:

phosphorescence

Mutations

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

Use

y ffosfforesgedd hwn
fy ffosfforesgedd i
dy ffosfforesgedd di
ei ffosfforesgedd ef/o
ei ffosfforesgedd hi
ein ffosfforesgedd ni
eich ffosfforesgedd chi
eu ffosfforesgedd nhw/hwy
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