词意辨析：
origin， source， root
这些名词均有“起源、起因、根源”之意。origin: 侧重指事物的起源或由来，也指人的出身。source: 本义指河流或瀑布的源头，引申指某事的来源出处，但更多指抽象事物的根源或来源。root: 通常指事物产生的原因或根源。
英语解释：
名词 roots:
the condition of belonging to a particular place or group by virtue of social or ethnic or cultural lineage
名词 root:
(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同义词：root
(linguistics) the form of a word after all affixes are removed同义词：root， root word， base， stem， theme， radical
the place where something begins， where it springs into being同义词：beginning， origin， root， rootage， source
a number that when multiplied by itself some number of times equals a given number同义词：root
the set of values that give a true statement when substituted into an equation同义词：solution， root
someone from whom you are descended (but usually more remote than a grandparent)同义词：ancestor， ascendant， ascendent， antecedent， root
a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes同义词：etymon， root
the part of a tooth that is embedded in the jaw and serves as support同义词：root， tooth root
动词 root:
take root and begin to grow同义词：root
come into existence， originate同义词：root
plant by the roots同义词：root
dig with the snout同义词：rout， root， rootle
take sides with align oneself with show strong sympathy for同义词：side， pull， root
become settled or established and stable in one's residence or life style同义词：settle， root， take root， steady down， settle down
cause to take roots同义词：root
例句：
Who's been rooting about among my papers?谁翻过我的文件了
Unhappiness is the root cause of his illness.不开心是他生病的根源。
Do you think the new rosebush has taken root?你看新栽的玫瑰长根了吗
