Derivational and inflectional morphemes (p.55)
Some derivational morphemes change the grammatical category of words (or grammatical class of words) and others
➢ the smallest unit in terms of relationship between expression and content,
➢ a unit which cannot be divided without destroying or drastically altering the meaning, whether it is lexical or grammatical.
When the root of the word is a free morpheme, we say the word has a free root, such as e.g. hopeful, interpersonal
When it is a bound morpheme, we say the word has a bound root, such as e.g. precede, receive, submit, retain, recur
The identification of words
(2) Relative uninterruptibility(相对的不可 隔 断 性 ): new elements are not to be inserted into a word even when there are several parts in the word. (i.e. outlaws, touch-me-not)