in English is:

anti-racism

Mutations

Soft:wrth-hiliaeth
Nasal:ngwrth-hiliaeth
Aspirate:(no mutation)

Use

yr wrth-hiliaeth hon
fy ngwrth-hiliaeth i
dy wrth-hiliaeth di
ei wrth-hiliaeth ef/o
ei gwrth-hiliaeth hi
ein gwrth-hiliaeth ni
eich gwrth-hiliaeth chi
eu gwrth-hiliaeth nhw/hwy
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