What does the suffix fort mean?

The suffix "-fort" is not a standalone suffix in the English language. However, it is often found in words that derive from the French word "fort," meaning "strong" or "fortified."

Here's how the suffix works in these words:

* Fortress: A fortified place, a stronghold.

* Comfort: Strength and ease, reassurance.

* Effort: Strong exertion, strenuous endeavor.

* Fortuitous: Happening by chance, lucky, fortunate (from "fortuna," meaning "fortune").

Therefore, the suffix "-fort" implies strength, fortification, or good fortune depending on the specific word.