- suction (n.)
[suction 词源字典]
- 1620s, "act or process of sucking," from Late Latin suctionem (nominative suctio), noun of action from past participle stem of Latin sugere "to suck" (see sup (v.2)). As "action produced by a vacuum" from 1650s.[suction etymology, suction origin, 英语词源]