词根词缀：pnigo-, pnig-, pnigmato-, pnigmat-

【来源及含义】Greek: choke, stifle, smother

【同源单词】pnigeraphobia, pnigma, pnigomortia, pnigophobia

词根词缀：suffoco-, suffoc-

【来源及含义】Latin: choke, stifle, strangle

【同源单词】suffocant, suffocate, suffocating, suffocation, suffocative