What does the welsh word saes mean?

"Saes" is not a valid Welsh word. It's possible you've made a typo or misspelt a word.

Could you please double-check the spelling or provide more context about what you're looking for?

For example:

* Are you trying to translate a specific phrase or sentence from English to Welsh?

* Do you have a written source where you saw this word?

* Is there a similar-sounding word in Welsh that you're thinking of?

With more information, I can help you find the correct meaning!