Relating to or having the nature of a suffix, which is a group of letters added to the end of a word to change its meaning.
The word 'suffixal' is used in grammar and linguistics to talk about how words change.
Examples:
The suffixal part of the word changes its meaning.
In this language, many words are suffixal.
She added a suffixal to the end of the word.
The suffixal part of the word is very important.
The suffixal part of the word can make it mean something very different.
The suffixal part of the word is like magic, changing the word into something new.