Common Words:
* Beautify: To make something beautiful.
* Clarify: To make something clear or understandable.
* Simplify: To make something easier to understand or do.
* Amplify: To make something louder or stronger.
* Purify: To make something clean or pure.
* Verify: To check if something is true or accurate.
* Terrify: To make someone very scared.
* Magnify: To make something appear larger.
* Identify: To recognize or establish the identity of someone or something.
* Quantify: To express something as a number or amount.
Less Common Words:
* Ameliorate: To make something better or less severe.
* Crucify: To kill someone by nailing them to a cross.
* Demolish: To destroy something completely.
* Fortify: To make something stronger or more secure.
* Intensify: To make something stronger or more extreme.
* Justify: To show that something is right or reasonable.
* Memorize: To learn something by heart.
* Mystify: To confuse or bewilder someone.
* Petrify: To turn something into stone.
* Ratify: To formally approve something.
* Sanctify: To make something holy or sacred.
* Solidify: To make something firm or solid.
* Specify: To state something clearly and exactly.
* Stupefy: To make someone feel confused or dazed.
* Unify: To bring people or things together.
* Vivify: To make something more lively or interesting.
This is not an exhaustive list, as there are many more words that end in "-ify." However, it should give you a good starting point.