外博词典，懂英语单词快速记忆法的在线英语词典

Etymology

boxcar (n.)

also box-car, "large enclosed railroad car for goods," 1856, American English, from box (n.1) + car.

"fist-fighter, pugilist," late 15c., agent noun from box (v.2). The breed of dog (1934), is from German Boxer (the breed originated in Germany), itself taken from English boxer "fighter;" the dog so called for its pugnaciousness. Boxer shorts (1943) so called from their resemblance to the attire worn in the ring.

boxing (n.)

"fighting with the fists as a sport," 1711, verbal noun from box (v.2). Boxing glove "padded glove used in sparring" is from 1805.

boxwood (n.)

also box-wood, "wood of the box-tree," fine and hard-grained, used for handles, etc., 1650s, from box (n.3) + wood (n.).

boxy (adj.)

"like a box in shape," 1858, from box (n.1) + -y (2). Related: Boxiness.

词源

action 行动，行为；活动，动作；作用，生效

词根词缀：-act-行动 + -ion名词后缀

activate 使活动，激发

词根词缀：-act-行动 + -ive，e被弱化 + -ate动词后缀

active 活动中的，积极的，主动的

词根词缀：-act-行动 + -ive形容词后缀，表性状

activity 活力，活跃，活动

词根词缀：-act-行动 + -ivity名词后缀，表性质/状态

actor 演员

actor是从拉丁语ago（即“do”，做，表演）变化来的。演员就是在舞台上“做戏”的人。同出于拉丁语词ago之源的还有active，action，agent等。