What is the prefix for efficient?

There isn't a single prefix that directly translates to "efficient". However, depending on the specific context, you could use several prefixes to create words with a similar meaning:

General Efficiency:

* Effic-: This is the most common and direct prefix, often used in words like "efficient" itself, "efficacy," and "efficiency."

* Effec-: This prefix can also denote effectiveness, such as in "effective" and "effectiveness."

* Prod-: This prefix indicates productivity, which is often associated with efficiency, such as in "productive" and "production."

Specific Efficiency:

* Auto-: Meaning "self", this prefix can suggest automation, which often leads to increased efficiency, as in "automate" and "automation."

* Opti-: Meaning "best" or "optimal", this prefix suggests optimization, which aims to achieve the highest efficiency, as in "optimize" and "optimization."

* Macro-: This prefix can indicate large-scale efficiency, as in "macroeconomics" and "macro management."

The best prefix to use depends on the specific meaning you want to convey.