Noun
chag (plural chags)
(Northern England) A branch of a tree; a branch of broom or gorse.
chag (plural chagim)
A Jewish festival or holiday, specifically, Passover, Shavuot, Sukkot and Shemini Atzeret
So when I see my Jewish kinfolk, I just say “Happy Passover,” “Happy Pesach” or “Chag Sameach.” Source: Internet