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：sap-, sapi-

【来源及含义】Latin: wise, wisdom, to be wise, to have wisdom; to know, knowledge; to taste [of], to perceive

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units meaning "know, knowledge; learn, learning": cogni-; discip-; gno-; histor-; intellect-; learn, know; math-; sci-; sopho-.

【同源单词】Homo sapiens, insipid, insipidity, insipience, insipient, insipiently