Here's a breakdown:
* Origin: It comes from the Latin suffix "-alis", which itself derives from the adjective ending "-us".
* Function: It turns a noun or verb into an adjective, describing something that has the quality or property of the original word.
Examples:
* Annual: Relating to a year (annus in Latin)
* Brutal: Characterized by brutality (brutus in Latin)
* Educational: Relating to education
* Spiritual: Relating to the spirit
Important note: While "ual" is a common suffix, there are also words ending in "ual" that have different origins and meanings, such as "actual" and "usual." It's best to check the dictionary for the specific meaning of any word ending in "ual".