原始派生词（Primary Derivative）是通过在基元词上做些变更而构成的。(从现代英语的角度出发，还是不把它归入“粘附词素”项为好。）
例如：
· Bond from bind
· Breach from break
· Wrong from wring
NOTE:
The most important class of words formed by internal changes consists of the past tenses of the Primary Words. Those past tense-words are not treated as Derivatives.
