in English is:

imagery

Mutations

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

Use

y ddelweddaeth hon
fy nelweddaeth i
dy ddelweddaeth di
ei ddelweddaeth ef/o
ei delweddaeth hi
ein delweddaeth ni
eich delweddaeth chi
eu delweddaeth nhw/hwy
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