- abstraction (n.)
[abstraction 词源字典]
- c. 1400, "a withdrawal from worldly affairs, asceticism," from Old French abstraction (14c.), from Latin abstractionem (nominative abstractio), noun of action from past participle stem of abstrahere "drag away, pull away, divert" (see abstract (adj.)). Meaning "idea of something that has no actual existence" is from 1640s.[abstraction etymology, abstraction origin, 英语词源]