后缀：-ce [副词后缀]

表示“...次”、“自...”、“从...”

once 一次

hence 因此，从今以后

twice 二次

thence 自那里，从那时起

thrice 三次

whence 从何处，由此

后缀：-cy [名词后缀]

表示性质、状态、职权、官衔

normalcy 正常状态

generalcy 将军职权、任期

vacancy 空白，空虚

surgeoncy 外科医生职务

captaincy 船长的职位

colonelcy 上校衔

bankruptcy 破产

ensigncy 海军小尉衔

infancy 幼年期

idiocy 白痴，呆痴

词根词缀：caco-, cac-, kako-, kak-

【来源及含义】Greek: bad, harsh, wrong, evil; incorrect; unpleasant; poor; used most of the time as a prefix

【相关词根词缀】Inter-related cross references, directly or indirectly, involving word units meaning "bad, wrong": dys-; mal-; mis-; pessim-; sceler-.

【同源单词】alexicacon, cacaerometer, cacaesthesia, cacergasia, cachectic, cachexia

词根词缀：cad-, cas-, cid-

【来源及含义】Latin: to fall, befall

【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, to: "chance, luck, fate": aleato-; auspic-; fortu-; -mancy; serendipity; sorc-; temer-; tycho-.

【同源单词】accidence, accident, accidental, accidentally, accidently, cadaver

词根词缀：calami-, calamit-

【来源及含义】Latin: damage, injury, loss, misfortune, disaster, disastrous, adversity

【同源单词】calamitologist, calamitous, calamitously, calamitousness, calamity, fiscalamity

词根词缀：calci-, calc-, calcane-, calcio-, calco-, calcar-, calx

【来源及含义】Latin: lime, calcium; heel, bone of the tarsus; to tread [derived from calx, calcis, limestone, lime, pebble; from Greek words halix and psephos meaning "small stone, pebble"]

【同源单词】a capite ad calcem, acalculia, astragalocalcanean, calcaneal, calcanean, calcaneitis

词根词缀：calibra-, calibr-, caliber-

【来源及含义】French: degree of merit or importance; diameter of a bullet, cannon-ball, etc.; instrument for measuring the thickness, width, or distance through the center of a tube

【同源单词】caliber, calibrate, calibrated, calibrated airspeed, calibrated altitude, calibrating tank

词根词缀：calig-

【来源及含义】Latin: darkness, dark

【同源单词】caligation, caliginosity, caliginous, caliginously, caliginousness, calligrapher

词根词缀：calli-, cali-, callo-, calo-, kalli-, kali-, kalo-, kaleido-

【来源及含义】Greek: kalos, beautiful

【同源单词】calisthenic, calisthenical, calisthenics, callidentia, calligraph, calligrapher

词根词缀：callus-, callous-

【来源及含义】Latin: hardened skin, thick skin; a knob

【相关词根词缀】 Cross references directly, or indirectly, involving the "skin": chorio-; cicatri- (scar); cori-; cuti-; hymen-; lepido- (scab, scale); papulo- (pimple); psoro- (itch, mange); pustu- (blister, pimple); rhytid- (wrinkle); scabio- (mange, itchy); sebo- (grease, oil).

【同源单词】callositas, callosity, callous, calloused, callousness, callus