词根词缀：malaco-, malac-, malako-, -malacia

【来源及含义】Greek: soft, softness; abnormal softening, soft-bodied

【同源单词】adenomalacia, angiomalacia, arteriomalacia, bronchomalacia, cardiomalacia, cerebromalacia

词根词缀：tracheo-, trache-

【来源及含义】Greek: windpipe; originally, "rough" artery

【同源单词】laryngotracheal, laryngotracheitis, laryngotracheobronchitis, laryngotracheobronchoscopy, laryngotracheoscopy, laryngotracheotomy