Es laetus/laeta.
To say "Happy Thanksgiving" in Latin, you would say "Felix Actiones Gratiarum." The word "felix" means happy, "actiones" means thanksgiving, and "gratiarum" signifies gratitude or thanks. So, altogether, it translates to "Happy Thanksgiving" in Latin.
laetus pullus
Laetus - masculine Laeta - feminine
In Pig Latin, "Happy New Year" would be "Appyhay Ewnay Earyay."
In Pig Latin, you would say Happy Valentine's Day, "Ap-Hay-y-pay, al-Vay-en-yay-ine's-tay, ay-Day."
happy birthday your majesty the king dose not love you
The phrase "Happy Holidays" is generally not used is Latin America. You can say "Felices Fiestas" for "Seasons Greetings" though.
The answer to that is : appy-hay other's-may ay-day
Срећан рођендан! - Serbian CyrillicSrećan rođendan! or Srećan Rodjendan! - Serbian Latin
it means happy in latin
Halloween = All Hallow Evening Felix Vesper Sanctorum (Happy Hallowed Night)
To say happy holidays in Latin you say beatus festis. In Spanish you say felices fiestas, in Polish it is happy holidays, in German as frohe Feiertage, Portuguese as boas festas, and in French as bonnes fetes.