in English is:

airmail

Mutations

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

Use

yr awyrbost hwn
fy awyrbost i
dy awyrbost di
ei awyrbost ef/o
ei hawyrbost hi
ein hawyrbost ni
eich awyrbost chi
eu hawyrbost nhw/hwy
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