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root (n.)

“植物的地下部分”, 晚期的古英语 rot, 来自斯堪的纳维亚语源, 类似于古北欧语 rot “根”, 形象地说是“原因, 起源”, 来自于原日耳曼语 *wrot (来源也是古英语 wyrt “根, 草本, 植物”, 古高德语 wurz, 德语 Wurz “一种植物”, 哥特语 waurts “一种根”, 在 -r- 之前有斯堪的纳维亚语特有的失 -w-), 来自于PIE根 *wrād- “分支, 根”. 通常古英语的“根” 字是 wyrttrumawyrtwala.

形象化使用是从13世纪. 牙齿, 头发等的, 从13世纪初开始 数学意义是从1550年代开始的. 语言学意义从1520年代开始. 意为“阴茎” 的俚语从1846年开始记录. 在非洲裔美国人的方言中, “根的神奇特性所影响的咒语”, 1935年. 对 take root 来自1530年代. Root beer, 由各种根的提取物制成, 最早记载于1841年, 美国英语; root doctor 来自1821年. Root cap 来自1875年.

root (v.1)

“dig with the snout”, 1530年代, 来自中英语 wroten “用鼻子挖”, 来自古英语 wrotan “扎根”, 来自原日耳曼语 *wrot- (来源也是古北欧语 rota, 瑞典语 rota “挖出来, 扎根”, 中低德语 wroten, 中荷兰语 wroeten, 古高德语 ruozian “耕耘” ), 来自PIE根 *wrod- “扎根, 啃”.

与动词义 root (n.) 相关联. 扩展意义为“戳一戳, 撬一撬”, 最早记录于1831年. 短语 root hog or die “工作或失败” 最早见于1834年, 美国英语(在戴维-克罗克特的作品中, 他指出这是一种“老话” ). 重现形式 rootin' tootin' “吵闹, 漫不经心” 从1875年开始记录.

root (v.2)

“加油, 支持”, 1889年, 美式英语, 原为棒球语境, 可能来自 root (v. 1) 经中间义“学习, 努力工作” (1856). 相关链接: Rooted; rooting.

root (v.3)

“用根固定或牢固地附着” (常作比喻), 13世纪初, 出自 root (n.); “用根拔起” 的意义(现在通常是 uproot) 也是14世纪末的相关: Rooted; rooting.

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Definitions of root from WordNet
1
root (n.)
(botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground;
root (n.)
the place where something begins, where it springs into being;
communism's Russian root
Synonyms: beginning / origin / rootage / source
root (n.)
(linguistics) the form of a word after all affixes are removed;
Synonyms: root word / base / stem / theme / radical
root (n.)
a number that, when multiplied by itself some number of times, equals a given number;
root (n.)
the set of values that give a true statement when substituted into an equation;
Synonyms: solution
root (n.)
someone from whom you are descended (but usually more remote than a grandparent);
Synonyms: ancestor / ascendant / ascendent / antecedent
root (n.)
a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes;
Synonyms: etymon
root (n.)
the embedded part of a bodily structure such as a tooth, nail, or hair;
2
root (v.)
take root and begin to grow;
this plant roots quickly
root (v.)
come into existence, originate;
The problem roots in her depression
root (v.)
cheer for;
She roots for the Broncos
root (v.)
plant by the roots;
root (v.)
dig with the snout;
the pig was rooting for truffles
Synonyms: rout / rootle
root (v.)
become settled or established and stable in one's residence or life style;
Synonyms: settle / take root / steady down / settle down
root (v.)
cause to take roots;
From wordnet.princeton.edu