"One study has shown that a set of 20 prefixes and 14 roots, and knowing how to use them, will unlock the meaning of over 100,000 words. A similar study showed that a set of 29 prefixes and 25 roots will give the meaning to over 125,000 words."
Source:
https://www.quora.com/What-are-some-really-important-word-roots-to-know-in-order-to-increase-English-vocabulary
好多時英文詞根砌唔到既詞,都係外來語居多。砌到既英文原生詞,你就算未見過,都會約略知道點解。
例如 motorbike,直譯返漢字,其實就係「摩打單車」,我諗其實英文世界對解生詞既做法同漢字世界差唔多