CET6 TEM8 IELTS GRE TOEFL
1. ob- "against, before" + st- => obst- "stand before, be opposite, stand opposite to, block, hinder".
2. obst- => ost- "dispel" (Old French) => oust (o -> ou).
- oust: see obstetric
- oust (v.)
- early 15c., from Anglo-French oster (late 13c.), Old French oster "remove, take away, take off; evict, dispel; liberate, release" (Modern French ôter), from Latin obstare "stand before, be opposite, stand opposite to, block," in Vulgar Latin, "hinder," from ob "against" (see ob-) + stare "to stand," from PIE root *sta- "to stand" (see stet). Related: Ousted; ousting.
- 1. The legislative body had voted to oust the country's onetime rulers.
- 2. The president has gone along with the hardliners lest they be tempted to oust him.
- 3. Last week they tried to oust him in a parliamentary vote of no confidence.
- 4. Baby cuckoos oust other baby birds from their nests.
- 5. Take care that quantity does not oust quality.
[ oust 造句 ]