What does thelo mean in English?

"Thelo" is not a standard English word. It's likely you are thinking of a word from another language.

Could you please provide more context? For example:

* Where did you see or hear "thelo"? (What language was it used in?)

* What was the sentence or phrase it was part of?

* What do you think it means?

This information will help me understand what you're looking for and give you a more accurate answer.