Define the following terms.back-formation

Define the following terms.back-formation
【正确答案】：

BACK-FORMATION IS CONSIDERED TO BE THE OPPOSITE PROCESS OF SUFFIXATION. IT IS THE METHOD OF CREATING WORDS BY REMOVING THE SUPPOSED SUFFIXES. BACK-FORMATION USUALLY INVOLVES THE FOLLOWING TYPES OF WORDS.

(1) ABSTRACT NOUNS； (2) HUMAN NOUNS； (3)COMPOUND NOUNS AND OTHERS； (4) ADJECTIVES. 

WORDS CREATED THROUGH BACK-FORMATION ARE MOSTLY VERBS.

【题目解析】：逆生法被认为是后缀法的对立过程。它是通过去掉假定的后缀来创造新词的方法。逆生法通常包括以下几种类型的单词。(1) 抽象名词 Abstract nouns； (2) 人物名词 Human nouns； (3)复合名词及其他 Compound nouns and others； (4) 形容词 Adjectives.由逆生法生成的词多半是动词。