And you are absolutely correct. The answer is portmanteau words. Congratulations if you knew that.

你完全正确。答案是合成词。恭喜你早就知道答案。

These words are portmanteaus — words that are formed by combining parts of two separate words.

这些词都是混成词——由两个独立单词的一部分组合而成的单词。

Lewis Carroll began to experiment with invented words (particularly blended or " portmanteau" words) in poems like " Jabberwocky" (1872).

刘易斯·卡罗尔开始在诸如“Jabberwocky” （1872 年）这样的诗歌中尝试使用发明的词（特别是混合词或“混合词” ）。

Compound or portmanteau words are an increasingly common source of new vocabulary (e.g. stagflation, edutainment, flexitarian, Disneyfication, frenemy, confuzzle, gastropub, bromance, hacktivist, chillax, infomercial, shareware, dramedy, gaydar, wellderly, techlash, etc).

复合词或混成词越来越成为新词汇的来源（例如，stagflation、edutainment、flexitarian、Disneyfication、frenemy、confuzzle、gastropub、bromance、hacktivist、chillax、infomercial、shareware、dramedy、gaydar、wellderly、techlash 等）。