pen
A Word with Latin Root, Prefix or Suffix
pen
[Historical] a heavy quill (large feather) or feather trimmed to a split point, used for writing with ink; any devices used in writing or drawing with ink
笔; 钢笔
Dissection of pen
pen = pen (=penn, feather);
pen = feather;
pen = extended further to mean the feather that is used in writing with ink
Important roots for this word:
penn
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