in English is:

freshness

,

novelty

Mutations

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

Use

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