As there is no direct word for Grandpa in the Samoan language, Tama (Father) is always used, so I would say:
Fa'afetai, Tama.
come here now
thank you very much
Fa'afetai lava
Fa'afetai lava
Thank you
Thank you very much for the letter you were able to write to me.
(I) thank you.
thank you
Thank you
If you mean "manaia", then it translates to, beautiful, gorgeous, sophisticated, easy to the eye, lovely
عافيت باشد (Afiat bashad)
SOIFUA -- The technical translation of soifua is "health" or "living". It's commonly used in the parting phrase fa soifua (fa meaning 'bye') FA'AFETAI TELE -- Fa'afetai is the equivalent of 'thanks' or 'thank you'. Tele means 'very'. So fa'afetai tele means "Thank you very". You can also say Fa'afetai tele lava which means "Thank you very much".