root
/rut/
(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
中文释义：根；根源
The tree's roots spread deep into the soil.
树的根深深扎入土壤。
Linguists trace the root of this word to Latin.
语言学家追溯这个词的词根到拉丁语。