in English is:

bathymetry

Mutations

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

Use

y fathymetreg hon
fy mathymetreg i
dy fathymetreg di
ei fathymetreg ef/o
ei bathymetreg hi
ein bathymetreg ni
eich bathymetreg chi
eu bathymetreg nhw/hwy
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