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encroach croach-croch-coch--hook
词汇起源
[14] Something that encroaches on something else literally seizes it with its ‘hooks’. The word was borrowed from Old French encrochier ‘catch in a hook’, hence ‘seize’.

To take another's possessions or rights gradually or stealthily: encroach on a neighbor's land.
To advance beyond proper or former limits
vi.侵犯, 侵略, 蚕食, 侵入(on; upon)

例句：
His new farm buildings encroach on his neighbour's land.
他新建的农场房子侵占了邻居的田地。

crochet
To make a piece of needlework by looping thread with a hooked needle.
To make by looping thread with a hooked needle: crochet a sweater.
n. Needlework made by looping thread with a hooked needle.
n. 钩边；钩针编织品
vt. 用钩针编织
vi. 用钩针编织

crotchet
An odd, whimsical, or stubborn notion.
Music. See quarter note.
n. 小钩；奇想；怪想；反复无常

crook
An implement or tool, such as a bishop's crosier or a shepherd's staff, with a bent or curved part.
A part that is curved or bent like a hook.
A curve or bend; a turn: a crook in the path.
Informal. One who makes a living by dishonest methods.
To make a crook in; bend
To bend or curve
Not honest; crooked.
n. 骗子，坏蛋；弯处，弯曲部分；钩状物
vt. 使弯曲；欺骗，诈骗
vi. 弯曲，成钩形

例句：
He crooked a necklace from that department store.
他从那家百货商店里偷到一条项链。
A narrow mountain path crooks through the forest.
一条狭窄的山路弯弯曲曲地穿过森林。

crank
A device for transmitting rotary motion, consisting of a handle or arm attached at right angles to a shaft.
A clever turn of speech; a verbal conceit:
Of, being, or produced by an eccentric person
To start or operate (an engine, for example) by or as if by turning a handle. To move or operate (a window, for example) by or as if by turning a handle.
To make into the shape of a crank; bend.
To provide with a handle that is used in turning
n. 曲柄；奇想；[美俚]疯狂[古怪]的人
adj. 奇异的
v. 转动曲柄移动;以曲柄操作;使弯曲；曲折行进

例句：
He is just a crank. His ideas are insane.
他只是一个疯子,他的想法都很疯狂。
The stream comes cranking into the village.
那条小溪弯弯曲曲地流入村内。

crouch
To stoop, especially with the knees bent: crouched over the grate, searching for his keys. To press the entire body close to the ground with the limbs bent: a cat crouching near its prey.
To bend servilely or timidly; cringe.
To bend (the head or knee, for example) low, as in fear or humility.
The act or posture of bending low or crouching.
vi. 蹲伏，蜷伏；卑躬屈膝
vt. 低头；屈膝
n. 蹲伏

例句：
The beggar is crouching in a corner of the room.
那个乞丐蜷缩在屋子的一个角落里。
The cat crouched down, ready to spring on the mouse.
那只猫蹲下身来准备向老鼠猛扑过去。

词源小故事

Tragedy 悲剧

　　在古希腊有一种吟游诗人，他们走村串户，四处游荡，为人们朗诵或演唱叙事史诗。这种吟游诗人叫tragoidos；这里的trago，就是“goat（山羊）”；oidos即“singer（歌手）“。英语的tragedy就是从trago，即“山羊”演变来的。

　　可是“悲剧”怎么会是从“山羊”变来的呢？关于这一点，历来众说纷纭，莫衷一是，有一种说法是，当时的悲歌是为向古希腊的戏剧之神 Dionysus献祭的山羊而唱的，另一种说法是，“山羊”是作为节日的奖品发放的。还有一种说法，古希腊的来兹波斯岛的Arion在节日时身穿山羊皮衣向一帮色情狂演说，招致了感情奔放的悲剧。