There is no such thing as seashells language.
"Good morning" in Malay is "Selamat pagi".
good morning
Every morning is a good morning in Antarctica. If your question is a language question, your answer is available in the language of the research station where you may find yourself on any morning. There is no 'Antarctic' language.
You say Good morning in Kisii language of the African origin as Bwakire.
"Maayung pagbati" is how you say good morning in Tausug language.
You say "Good morning!" in Yoruba language of the Western African origin as "Ek'aro".
In what language?
"Good Morning", English is an official language in Mauritius.
"Good morning" is an English phrase.
A good site to identify seashells is seashells.org or seashells.com
Good morning in Tibetan language is "ཞོང་ཉིམ་པང་" (zhong nyima pang).
"Maayong buntag" is "good morning" in Cebuano language.