- setback (n.)
[setback 词源字典]
- also set-back, 1670s, "reversal, check to progress," from set (v.) + back (adv.). Sometimes backset was used in the same sense. Meaning "space between a building and a property line" is from 1916. To set (someone) back "cost" is from 1900.[setback etymology, setback origin, 英语词源]