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：scrup-, scrupul-

【来源及含义】Latin: uneasiness, anxiety, doubt, especially, over a moral issue; literally, "small, sharp stone or pebble"

【同源单词】overscrupulosity, overscrupulous, overscrupulously, overscrupulousness, scruple, scruple