词根：-forc-, -fort-

【词根含义】：力量,强壮

【词根来源】：来源于拉丁语形容词fortis, forte, fortiori(强壮的,有力的),词干为-fort-,经由法语force进入英语。

【同源单词】：enforce, enforcement, force, forceful, forcible

前缀：ef-

【词根来源】：=ex-,用在f前。

【同源单词】：effect, effective, effectively, effectuate, efferent

词根词缀：fort-, forc-

【来源及含义】Latin: brave; power, strength, strong

【同源单词】a fortiori, Citius, comfort, comfortable, comfortableness, comfortably

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