Hanukkah is a holiday. Not a language. During Hanukkah you would say "hello" the same as on a regular day. You can also greet people by saying "Happy Hanukkah".
Hanukka was originally known as the Feast of Dedication. Maybe that is the Hebrew meaning.
You say "hello" in English.
Kamusta is how you say hello
halito is how you say hello and how to say hello how are you is Halito, Chim Achukma?
Say Hello to Rosita!
This is how you say hello in Turkish: Merhaba = Hello
Crocodiles do NOT say hello.
In Neapolitan, you say "ciao" to say hello.
In Paiute, you can say "Kwai" to say hello.
Jewish People.
In Tunisian, you can say "Marhaba" to say hello.
To say hello in Ijaw, you can say "ẹ̀rịa" or "ẹ̀kẹ̀ní."