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e-, 缓音字母。-scala, 梯子，词源同ascend, echelon.比喻义加剧，恶化。
- escalate:  Escalate is a back-formation from escalator , which was originally a tradename for a moving staircase first made in the USA around 1900 by the Otis Elevator Company. This in turn seems to have been coined (probably on the model of elevator) from escalade , a term in medieval warfare signifying the scaling of a fortified wall, which came via French and Spanish from medieval Latin scalāre, source of English scale ‘climb’. Escalate originally meant simply ‘ascend on an escalator’; the metaphorical sense ‘increase’ developed at the end of the 1950s.
- escalate (v.)
- 1922, "to use an escalator," back-formation from escalator, replacing earlier verb escalade (1801), from the noun escalade. Escalate came into general use with a figurative sense of "raise" from 1959 (intrans.), originally in reference to scenarios for possible nuclear war. Related: Escalated; escalating. Transitive figurative sense is by 1962.
- 1. Costs can escalate terrifyingly.
- 2. Ground rents are likely to escalate over time.
- 3. Conditions are still very tense and the fighting could escalate at any time.
- 4. Both unions and management fear the dispute could escalate.
- 5. Defeat could cause one side or other to escalate the conflict.
[ escalate 造句 ]