Words starting with letter Y ending ion?

There are no common English words that start with the letter "Y" and end with the suffix "-ion".

It's possible that you might be thinking of a word that starts with "Y" and ends with "-ation", "-ition", or "-ition".

Can you give me more context or try to remember the word? Perhaps you could describe the word's meaning or give me another example of a word that sounds similar.