词根：rhythm = rhythm, 表示“节奏”

arrhythmic a. 无节奏的；心率不齐的（ar无+rhythm+ic）

eurhythmic a. 比例协调的（eu美好+rhythm+ic→有好的节奏→协调）

unrhythmical a. 无韵律的，无节奏的（un不，无+rhythm+ical）

词根：asthm = panting （喘气）

asthma n. 气喘病

词根：isthm = narrow pass （狭道）

isthmus 地狭

词根词缀：aichmo-, aichm-

【来源及含义】Greek: spear, spear point

【同源单词】aichmomancy, aichmomania, aichmophobia, aichmorhabdophobia

词根词缀：arithmo-, arith-

【来源及含义】Greek: number

【同源单词】arithmancy, arithmocracy, arithmocratic, arithmogram, arithmograph, arithmography

词根词缀：bathmo-, bathm-

【来源及含义】Greek: a step or degree; rank; by steps

【同源单词】bathmophobia, bathmotropic, bathmotropism

词根词缀：ethm-, ethmo-

【来源及含义】Greek: strainer, sieve

【同源单词】dacryocystoethmoidostomy, esoethmoid sinus, esoethmoiditis, ethmoid, ethmoidectomy, ethmoiditis

词根词缀：isthm-, isthmo-

【来源及含义】Greek: narrow passage or ridge; narrow passage or strip [especially of bodily tissue] connecting two larger entities

【同源单词】isthmectomy, isthmian, isthmoid, isthmoparalysis, isthmoplegia, isthmospasm

词根词缀：lochmo-, lochm-

【来源及含义】Greek: thicket, bush

【同源单词】lochmocolous, lochmodophile, lochmodophilous, lochmodophyte, lochmophile, lochmophilous

词根词缀：rhythm-, rhythmo-

【来源及含义】Greek: regularly recurring motion; measured motion

【同源单词】accelerated idioventricular rhythm, allorhythmia, allorhythmic, alpha rhythm, anisorhythmia, anisorrhythmia