What is the English translation for Celtic word athasach?

The Celtic word "athasach" is most likely from the Irish language and means "joyful," "happy," or "merry."

It's important to note that while "athasach" is indeed a Celtic word, it's not a universal term used by all Celtic languages. It's specific to Irish.

Here's a breakdown:

* athas: means "joy," "delight," or "pleasure"

* ach: a suffix that indicates "full of" or "characterized by"

Therefore, "athasach" literally means "full of joy" or "characterized by joy."