What type of ions have names ending in ide?

The Halides ...

The Elements of Group VII

Flouride

Chloride

Bromide

Iodide ...

It's common to mistake that only Halides have names ending with - ide

However, there are many other ions that aren't Halides, but still have the suffix

Examples include:

Cyanide - [CN] (-)

Sulfide - [S] (2-)

Nitride - N (3-)

Oxide - O (2-)

Peroxide - [O2] (2-)

Halide - H (-)

In case you haven't noticed, all the - ides I have mentioned have negative charges

So, there's your answer. Negatively charged ions, or anions, usually have names ending in - ide