词根词缀：err-, errat-

【来源及含义】Latin: wander, stray, rove; deviate

【同源单词】aberr, aberrance, aberrancy, aberrant, aberrate, aberration

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