短语词组短語root of word 根字secondary root -word 次詞根詞primary root -word 基本詞根root of a word 詞源;詞根Latin root word 拉丁語詞根the root of a word 詞根the root word of dialect 方言本字word root 詞根Key name and word root 鍵名及字根 返回 root word