1. To describe the qualities or peculiarities of; SYN. characterize.
2. To make fit or prepared; SYN. dispose.
3. To pronounce fit.
4. To prove capable or fit; meet requirements; SYN. measure up.
5. To make more specific; SYN. restrict.

ETYM Latin quantus now much + -fy.
1. To express as a quantity; SYN. measure.
2. To use as a quantifier; in logic.