Nos da, William.
BTW the Welsh version of William is Gwilym.
You would say "Nos da, William" in Welsh.
nos da
"Nos da" in Welsh means "goodnight." "You chi" is a polite form of "you" in Welsh, so "Nos da you chi" can be translated as "goodnight to you (polite/formal)."
Because at the end Willie goes to live with Mr Tom Oakley forever and he can say, every night, Goodnight Mr Tom.The name of the novel comes from something William said early on in the story. Up to this point William had been addressing Tom as "Mister". Mr Oakley tells William you can call me Tom. William immediately replies "Goodnight Mister Tom"
"Goodnight".
goodnight!
goodnight
William is an 8-year-old boy in "Goodnight Mister Tom."
In British English, you can say "goodnight" or "night" as a shorter version.
William Welsh - Canadian politician - was born in 1822.
William Welsh - Canadian politician - died in 1905.
In Sondhi, you can say "เบเบตเปเบเบเบฑเบ" (dien kan) to say goodnight.
goodnight is "bonne nuit" in France.