What is thaska called in English?

"Thaska" is not a common word in English. It's possible that it's a word from another language or a made-up word.

Could you provide more context?

* Where did you encounter the word "thaska"? (e.g., a book, a conversation, a website)

* What is the context of the word? (e.g., is it a name, a place, a thing?)

With more information, I can help you find the English equivalent.