prez

The term "prez" is a modern English slang clipping, emerging in the 20th century as an informal abbreviation for "president." It follows a common pattern in English where longer, formal titles are shortened for casual or familiar use, similar to "prof" for professor or "doc" for doctor. The core of the word, "pres-", is taken directly from the beginning of the source word. This truncation reflects a linguistic tendency towards efficiency and social intimacy, creating a colloquialism that carries the full referential meaning of the original but within a more relaxed register.

This word is a clipped form, not derived from the combination of productive morphemes. It is a direct shortening of the English word "president."