extraneous
A Word with Latin Root, Prefix or Suffix
extraneous
existing on or coming from the outside
外来的, 无关的
Dissection of extraneous
extraneous = extra- (out side of) + -n (-n is a remnant from -nus which is a Latin adjective suffix) + -eous (=-ous, full of);
extraneous = full of things that are from outside;
extraneous = extended further to mean coming from outside; existing outside
Important roots for this word:
extra-
-ous
Note: You may sometimes find that a vowel such as o is often inserted between two roots, as o inserted between phon and graph in phonograph = phon + o + graph, the reason is for easy pronounciation. Another example is archaeology = archae + o + logy