- precision (n.)
[precision 词源字典]
- 1630s, "a cutting off (mentally), abstraction," from French précision (16c.) and directly from Latin praecisionem (nominative praecisio) "a cutting off," noun of action from past participle stem of praecidere (see precise). Meaning "preciseness" is from 1740.[precision etymology, precision origin, 英语词源]