* -ful: This suffix means "full of" or "characterized by". Joyful means filled with joy.
* -less: This suffix means "without". Joyless means lacking joy.
* -ous: This suffix often indicates a state or quality. Joyous means characterized by joy or expressing joy.
There are also related words with other prefixes and suffixes, like:
* De-joy (meaning to deprive of joy)
* Re-joy (meaning to experience joy again)
It's important to note that these are not universally used prefixes and suffixes, but they are common ways to create related words.