词根词缀:-less
【来源及含义】Old English: -leas, from leas, "free from, devoid of, false, feigned"; suffix meaning "lacking"
【同源单词】aimless, artless, avoidless, causeless, ceaseless, charmless
词根词缀:pass-, pati-
【来源及含义】Latin: suffering, feeling; enduring
【相关词根词缀】 Related-word units meaning feeling: aesth-; senso-; patho-.
【同源单词】compassion, compassionate, compassionately, compassionless, compassive, compassivity