Serif (noun)

A small line or stroke added as a finishing touch to the upper and lower ends of letters and symbols in certain typefaces.

Origin:

From french sérif, from old french serif, from latin serif, from serifluus ("having serifs"), from serif ("finishing stroke").

Examples:

1. Serif typefaces are considered more traditional and are often used in printed materials.
2. The serifs on the letter "I" make it more elegant.
3. The serif typeface is more legible than the sans-serif typeface.
4. The serif typeface is used in book design.
5. The serif in typography is the small line that is added to the end of the letter.